FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_clipboard_format_equal` reads freed `lastSentFormats` memory because `xf_clipboard_formats_free` (called from the cliprdr channel thread during auto-reconnect) frees the array while the X11 event thread concurrently iterates it in `xf_clipboard_changed`, triggering a heap use after free. Version 3.23.0 fixes the issue.

The remote SUSE Linux SLES16 / SLES_SAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:21436-1 advisory.

    Update to version 3.24.2.

    Security issues fixed:

    - CVE-2026-25941: out-of-bounds read in the FreeRDP client RDPGFX channel (bsc#1258919).
    - CVE-2026-25942: buffer overflow of global array in `xf_rail_server_execute_result` (bsc#1258920).
    - CVE-2026-25952: heap use-after-free in `xf_SetWindowMinMaxInfo` (bsc#1258921).
    - CVE-2026-25953: heap use-after-free in `xf_AppUpdateWindowFromSurface` (bsc#1258923).
    - CVE-2026-25954: heap use-after-free in `xf_rail_server_local_move_size` (bsc#1258924).
    - CVE-2026-25955: heap use-after-free in `xf_AppUpdateWindowFromSurface` (bsc#1258973).
    - CVE-2026-25959: heap use-after-free in `xf_cliprdr_provide_data_` (bsc#1258976).
    - CVE-2026-25997: heap use-after-free in `xf_clipboard_format_equal` (bsc#1258977).
    - CVE-2026-26271: buffer overread in FreeRDP icon processing (bsc#1258979).
    - CVE-2026-26955: out-of-bounds write in FreeRDP clients using the GDI surface pipeline (bsc#1258982).
    - CVE-2026-26965: out-of-bounds write in FreeRDP client RLE planar decode path (bsc#1258985).
    - CVE-2026-29774: heap buffer overflow in the FreeRDP client's AVC420/AVC444 YUV-to-RGB conversion path     (bsc#1259689).
    - CVE-2026-29775: out-of-bounds access in the FreeRDP client bitmap cache subsystem (bsc#1259684).
    - CVE-2026-29776: integer underflow in `update_read_cache_bitmap_order` (bsc#1259692).
    - CVE-2026-31806: heap buffer overflow in `nsc_process_message` (bsc#1259653).
    - CVE-2026-31883: heap buffer overwrite due to a `size_t` underflow in the IMA-ADPCM and MS-ADPCM audio     decoders       (bsc#1259679).
    - CVE-2026-31884: division by zero in MS-ADPCM and IMA-ADPCM decoders (bsc#1259680).
    - CVE-2026-31885: out-of-bounds read in MS-ADPCM and IMA-ADPCM decoders (bsc#1259686).
    - CVE-2026-31897: out-of-bounds read in `freerdp_bitmap_decompress_planar` (bsc#1259693).
    - CVE-2026-33952: client-side crash due to `WINPR_ASSERT()` failure in     `rts_read_auth_verifier_no_checks()`       (bsc#1261196).
    - CVE-2026-33977: client-side crash due to `WINPR_ASSERT()` failure in IMA ADPCM audio decoder     (bsc#1261198).
    - CVE-2026-33982: heap buffer overread in in `winpr_aligned_offset_recalloc` (bsc#1261222).
    - CVE-2026-33983: undefined behavior and resource exhaustion via 80 billion iteration loop in       `progressive_decompress_tile_upgrade` (bsc#1261200).
    - CVE-2026-33984: heap buffer overflow in ClearCodec `resize_vbar_entry` (bsc#1261211).
    - CVE-2026-33985: heap out-of-bounds read in `clear_decompress_glyph_data` (bsc#1261217).
    - CVE-2026-33986: heap out-of-bounds write due to H.264 YUV buffer dimension desync (bsc#1261223).
    - CVE-2026-33987: heap out-of-bounds write due to persistent cache bmpSize desync (bsc#1261226).
    - CVE-2026-33995: double-free vulnerability in `kerberos_AcceptSecurityContext` and       `kerberos_InitializeSecurityContextA` (bsc#1261227).

    Other updates and bugfixes:

    - Version 3.24.2:
      * [channels,video] fix wrong cast (#12511)
      * [codec,openh264] reject encoder ABI mismatch on runtime-loaded library (#12510)
      * [client,sdl] create a copy of rdpPointer (#12512)
      * [codec,video] properly pass intermediate format (#12518)
      * [utils, signal] lazily initialize Windows CRITICAL_SECTION to match POSIX static mutex behavior     (#12520) winpr:
        improve libunwind backtraces (#12530)
      * [server,shadow] remember selected caps (#12528)
      * Zero credential data before free in NLA and NTLM context (#12532)
      * [server,proxy] ignore missing client in input channel (#12536)
      * [server,proxy] ignore rdpdr messages (#12537)
      * [winpr,sspi] improve kerberos logging (#12538)
      * Codec fixes (#12542)

    - Version 3.24.1:
      * [warnings] fix various sign and cast warnings (#12480)
      * [client,x11] start with xfc->remote_app = TRUE; (#12491)
      * Sam file read regression fix (#12484)
      * [ncrypt,smartcardlogon] support ECC keys in PKCS#11 smartcard enumeration (#12490)
      * Fix: memory leak in rdp_client_establish_keys() (#12494)
      * Fix memory leak in freerdp_settings_int_buffer_copy() on error paths (libfreerdp/core/settings.c)     (#12486)
      * Code Cleanups (#12493)
      * Fix: memory leak in PCSC_SCardListReadersW() (#12495)
      * [channels,telemetry] use dynamic logging (#12496)
      * [channel,gfx] use generic plugin log (@12498, #12499)
      * [channels,audin] set error when audio_format_read fails (#12500)
      * [channels,video] unify error handling (#12502)
      * Fastpath fine grained lock (#12503)
      * [core,update] make the PlaySound callback non-mandatory (#12504)
      * Refinements: RPM build updates, FIPS improvements (#12506)

    - Version 3.24.0:
      * Completed the [[nodiscard]] marking of the API to warn about problematic
      * unchecked use of functions
      * Added full C23 support (default stays at C11) to allow new compilers
      * to do stricter checking
      * Improved X11 and SDL3 clients
      * Improved smartcard support
      * proxy now supports RFX graphics mode
      * Attribute nodiscard related chanes (#12325, #12360, #12395, #12406, #12421, #12426, #12177, #12403,     #12405, #12407,         #12409, #12408, #12412, #12413)
      * c23 related improvements (#12368, #12371, #12379, #12381, #12383, #12385, #12386, #12387, #12384)
      * Generic code cleanups (#12382, #12439, #12455, #12462, #12399, #12473) [core,utils] ignore NULL values     in         remove_rdpdr_type (#12372)
      * [codec,fdk] revert use of WinPR types (#12373)
      * [core,gateway] ignore incomplete rpc header (#12375, #12376)
      * [warnings] make function declaration names consistent (#12377)
      * [libfreerdp] Add new define for logon error info (#12380)
      * [client,x11] improve rails window locking (#12392)
      * Reload fix missing null checks (#12396)
      * Bounds checks (#12400)
      * [server,proxy] check for nullptr before using scard_call_context (#12404)
      * [uwac] fix rectangular glitch around surface damage regions (#12410)
      * Address various error handling inconsistencies (#12411)
      * [core,server] Improve WTS API locking (#12414)
      * Address some GCC compile issues (#12415, #12420)
      * Winpr atexit (#12416)
      * [winpr,smartcard] fix function pointer casts (#12422)
      * Xf timer fix (#12423)
      * [client,sdl] workaround for wlroots compositors (#12425)
      * [client,sdl] fix SdlWindow::query (#12378)
      * [winpr,smartcard] fix PCSC_ReleaseCardContext (#12427)
      * [client,x11] eliminate obsolete compile flags (#12428)
      * [client,common] skip sending input events when not connected (#12429)
      * Input connected checks (#12430)
      * Floatbar and display channel improvements (#12431)
      * [winpr,platform] fix WINPR_ATTR_NODISCARD definition (#12432)
      * [client] Fix writing of gatewayusagemethod to .rdp files (#12433)
      * Nodiscard finetune (#12435)
      * [core] fix missing gateway credential sync (#12436)
      * [client,sdl3] limit FREERDP_WLROOTS_HACK (#12441)
      * [core,settings] Allow FreeRDP_instance in setter (#12442)
      * [codec,h264] make log message trace (#12444)
      * X11 rails improve (#12440)
      * [codec,nsc] limit copy area in nsc_process_message (#12448)
      * Proxy support RFX and NSC settings (#12449)
      * [client,common] display a shortened help on parsing issues (#12450)
      * [winpr,smartcard] refine locking for pcsc layer (#12451)
      * [codec,swscale] allow runtime loading of swscale (#12452)
      * Swscale fallback (#12454)
      * Sdl multi scaling support (#12456)
      * [packaging,flatpak] update runtime and dependencies (#12457)
      * [codec,video] add doxygen version details (#12458)
      * [github,templates] update templates (#12460)
      * [client,sdl] allow FREERDP_WLROOTS_HACK for all sessions (#12461)
      * [warnings,nodiscard] add log messages for failures (#12463)
      * [gdi,gdi] ignore empty rectangles (#12467)
      * Smartcard fix smartcard-login, pass rdpContext for abort (#12466)
      * [winpr,smartcard] fix compiler warnings (#12469)
      * [winpr,timezone] fix search for transition dates (#12468)
      * [client,common] improve /p help (#12471)
      * Scard logging refactored (#12472)
      * [emu,scard] fix smartcard emulation (#12475)
      * Sdl null cursor (#12474)

    - Version 3.23.0:
      * Sdl cleanup (#12202)
      * [client,sdl] do not apply window offset (#12205)
      * [client,sdl] add SDL_Error to exceptions (#12214)
      * Rdp monitor log (#12215)
      * [winpr,smartcard] implement some attributes (#12213)
      * [client,windows] Fix return value checks for mouse event functions (#12279)
      * [channels,rdpecam] fix sws context checks (#12272)
      * [client,windows] Enhance error handling and context validation (#12264)
      * [client,windows] Add window handle validation in RDP_EVENT_TYPE_WINDOW_NEW (#12261)
      * [client,sdl] fix multimon/fullscreen on wayland (#12248)
      * Vendor by app (#12207)
      * [core,gateway] relax TSG parsing (#12283)
      * [winpr,smartcard] simplify PCSC_ReadDeviceSystemName (#12273)
      * [client,windows] Implement complete keyboard indicator synchronization (#12268)
      * Fixes more more more (#12286)
      * Use application details for names (#12285)
      * warning cleanups (#12289)
      * Warning cleanup (#12291)
      * [client,windows] Enhance memory safety with NULL checks and resource protection (#12271)
      * [client,x11] apply /size:xx% only once (#12293)
      * Freerdp config test (#12295)
      * [winpr,smartcard] fix returned attribute length (#12296)
      * [client,SDL3] Fix properly handle smart-sizing with fullscreen (#12298)
      * [core,test] fix use after free (#12299)
      * Sign warnings (#12300)
      * [cmake,compiler] disable -Wjump-misses-init (#12301)
      * [codec,color] fix input length checks (#12302)
      * [client,sdl] improve cursor updates, fix surface sizes (#12303)
      * Sdl fullscreen (#12217)
      * [client,sdl] fix move constructor of SdlWindow (#12305)
      * [utils,smartcard] check stream length on padding (#12306)
      * [android] Fix invert scrolling default value mismatch (#12309)
      * Clear fix bounds checks (#12310)
      * Winpr attr nodiscard fkt ptr (#12311)
      * [codec,planar] fix missing destination bounds checks (#12312)
      * [codec,clear] fix destination checks (#12315)
      * NSC Codec fixes (#12317)
      * Freerdp api nodiscard (#12313)
      * [allocations] fix growth of preallocated buffers (#12319)
      * Rdpdr simplify (#12320)
      * Resource fix (#12323)
      * [winpr,utils] ensure message queue capacity (#12322)
      * [server,shadow] fix return and parameter checks (#12330)
      * Shadow fixes (#12331)
      * [rdtk,nodiscard] mark rdtk API nodiscard (#12329)
      * [client,x11] fix XGetWindowProperty return handling (#12334)
      * Win32 signal (#12335)
      * [channel,usb] fix message parsing and creation (#12336)
      * [cmake] Define WINPR_DEFINE_ATTR_NODISCARD (#12338)
      * Proxy config fix (#12345)
      * [codec,progressive] refine progressive decoding (#12347)
      * [client,sdl] fix sdl_Pointer_New (#12350)
      * [core,gateway] parse [MS-TSGU] 2.2.10.5 HTTP_CHANNEL_RESPONSE_OPTIONAL (#12353)
      * X11 kbd sym (#12354)
      * Windows compile warning fixes (#12357,#12358,#12359)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20657-1 advisory.

    Update to version 3.24.2.

    Security issues fixed:

    - CVE-2026-25941: out-of-bounds read in the FreeRDP client RDPGFX channel (bsc#1258919).
    - CVE-2026-25942: buffer overflow of global array in `xf_rail_server_execute_result` (bsc#1258920).
    - CVE-2026-25952: heap use-after-free in `xf_SetWindowMinMaxInfo` (bsc#1258921).
    - CVE-2026-25953: heap use-after-free in `xf_AppUpdateWindowFromSurface` (bsc#1258923).
    - CVE-2026-25954: heap use-after-free in `xf_rail_server_local_move_size` (bsc#1258924).
    - CVE-2026-25955: heap use-after-free in `xf_AppUpdateWindowFromSurface` (bsc#1258973).
    - CVE-2026-25959: heap use-after-free in `xf_cliprdr_provide_data_` (bsc#1258976).
    - CVE-2026-25997: heap use-after-free in `xf_clipboard_format_equal` (bsc#1258977).
    - CVE-2026-26271: buffer overread in FreeRDP icon processing (bsc#1258979).
    - CVE-2026-26955: out-of-bounds write in FreeRDP clients using the GDI surface pipeline (bsc#1258982).
    - CVE-2026-26965: out-of-bounds write in FreeRDP client RLE planar decode path (bsc#1258985).
    - CVE-2026-29774: heap buffer overflow in the FreeRDP client's AVC420/AVC444 YUV-to-RGB conversion path     (bsc#1259689).
    - CVE-2026-29775: out-of-bounds access in the FreeRDP client bitmap cache subsystem (bsc#1259684).
    - CVE-2026-29776: integer underflow in `update_read_cache_bitmap_order` (bsc#1259692).
    - CVE-2026-31806: heap buffer overflow in `nsc_process_message` (bsc#1259653).
    - CVE-2026-31883: heap buffer overwrite due to a `size_t` underflow in the IMA-ADPCM and MS-ADPCM audio     decoders       (bsc#1259679).
    - CVE-2026-31884: division by zero in MS-ADPCM and IMA-ADPCM decoders (bsc#1259680).
    - CVE-2026-31885: out-of-bounds read in MS-ADPCM and IMA-ADPCM decoders (bsc#1259686).
    - CVE-2026-31897: out-of-bounds read in `freerdp_bitmap_decompress_planar` (bsc#1259693).
    - CVE-2026-33952: client-side crash due to `WINPR_ASSERT()` failure in     `rts_read_auth_verifier_no_checks()`       (bsc#1261196).
    - CVE-2026-33977: client-side crash due to `WINPR_ASSERT()` failure in IMA ADPCM audio decoder     (bsc#1261198).
    - CVE-2026-33982: heap buffer overread in in `winpr_aligned_offset_recalloc` (bsc#1261222).
    - CVE-2026-33983: undefined behavior and resource exhaustion via 80 billion iteration loop in       `progressive_decompress_tile_upgrade` (bsc#1261200).
    - CVE-2026-33984: heap buffer overflow in ClearCodec `resize_vbar_entry` (bsc#1261211).
    - CVE-2026-33985: heap out-of-bounds read in `clear_decompress_glyph_data` (bsc#1261217).
    - CVE-2026-33986: heap out-of-bounds write due to H.264 YUV buffer dimension desync (bsc#1261223).
    - CVE-2026-33987: heap out-of-bounds write due to persistent cache bmpSize desync (bsc#1261226).
    - CVE-2026-33995: double-free vulnerability in `kerberos_AcceptSecurityContext` and       `kerberos_InitializeSecurityContextA` (bsc#1261227).

    Other updates and bugfixes:

    - Version 3.24.2:
      * [channels,video] fix wrong cast (#12511)
      * [codec,openh264] reject encoder ABI mismatch on runtime-loaded library (#12510)
      * [client,sdl] create a copy of rdpPointer (#12512)
      * [codec,video] properly pass intermediate format (#12518)
      * [utils, signal] lazily initialize Windows CRITICAL_SECTION to match POSIX static mutex behavior     (#12520) winpr:
        improve libunwind backtraces (#12530)
      * [server,shadow] remember selected caps (#12528)
      * Zero credential data before free in NLA and NTLM context (#12532)
      * [server,proxy] ignore missing client in input channel (#12536)
      * [server,proxy] ignore rdpdr messages (#12537)
      * [winpr,sspi] improve kerberos logging (#12538)
      * Codec fixes (#12542)

    - Version 3.24.1:
      * [warnings] fix various sign and cast warnings (#12480)
      * [client,x11] start with xfc->remote_app = TRUE; (#12491)
      * Sam file read regression fix (#12484)
      * [ncrypt,smartcardlogon] support ECC keys in PKCS#11 smartcard enumeration (#12490)
      * Fix: memory leak in rdp_client_establish_keys() (#12494)
      * Fix memory leak in freerdp_settings_int_buffer_copy() on error paths (libfreerdp/core/settings.c)     (#12486)
      * Code Cleanups (#12493)
      * Fix: memory leak in PCSC_SCardListReadersW() (#12495)
      * [channels,telemetry] use dynamic logging (#12496)
      * [channel,gfx] use generic plugin log (@12498, #12499)
      * [channels,audin] set error when audio_format_read fails (#12500)
      * [channels,video] unify error handling (#12502)
      * Fastpath fine grained lock (#12503)
      * [core,update] make the PlaySound callback non-mandatory (#12504)
      * Refinements: RPM build updates, FIPS improvements (#12506)

    - Version 3.24.0:
      * Completed the [[nodiscard]] marking of the API to warn about problematic
      * unchecked use of functions
      * Added full C23 support (default stays at C11) to allow new compilers
      * to do stricter checking
      * Improved X11 and SDL3 clients
      * Improved smartcard support
      * proxy now supports RFX graphics mode
      * Attribute nodiscard related chanes (#12325, #12360, #12395, #12406, #12421, #12426, #12177, #12403,     #12405, #12407,         #12409, #12408, #12412, #12413)
      * c23 related improvements (#12368, #12371, #12379, #12381, #12383, #12385, #12386, #12387, #12384)
      * Generic code cleanups (#12382, #12439, #12455, #12462, #12399, #12473) [core,utils] ignore NULL values     in         remove_rdpdr_type (#12372)
      * [codec,fdk] revert use of WinPR types (#12373)
      * [core,gateway] ignore incomplete rpc header (#12375, #12376)
      * [warnings] make function declaration names consistent (#12377)
      * [libfreerdp] Add new define for logon error info (#12380)
      * [client,x11] improve rails window locking (#12392)
      * Reload fix missing null checks (#12396)
      * Bounds checks (#12400)
      * [server,proxy] check for nullptr before using scard_call_context (#12404)
      * [uwac] fix rectangular glitch around surface damage regions (#12410)
      * Address various error handling inconsistencies (#12411)
      * [core,server] Improve WTS API locking (#12414)
      * Address some GCC compile issues (#12415, #12420)
      * Winpr atexit (#12416)
      * [winpr,smartcard] fix function pointer casts (#12422)
      * Xf timer fix (#12423)
      * [client,sdl] workaround for wlroots compositors (#12425)
      * [client,sdl] fix SdlWindow::query (#12378)
      * [winpr,smartcard] fix PCSC_ReleaseCardContext (#12427)
      * [client,x11] eliminate obsolete compile flags (#12428)
      * [client,common] skip sending input events when not connected (#12429)
      * Input connected checks (#12430)
      * Floatbar and display channel improvements (#12431)
      * [winpr,platform] fix WINPR_ATTR_NODISCARD definition (#12432)
      * [client] Fix writing of gatewayusagemethod to .rdp files (#12433)
      * Nodiscard finetune (#12435)
      * [core] fix missing gateway credential sync (#12436)
      * [client,sdl3] limit FREERDP_WLROOTS_HACK (#12441)
      * [core,settings] Allow FreeRDP_instance in setter (#12442)
      * [codec,h264] make log message trace (#12444)
      * X11 rails improve (#12440)
      * [codec,nsc] limit copy area in nsc_process_message (#12448)
      * Proxy support RFX and NSC settings (#12449)
      * [client,common] display a shortened help on parsing issues (#12450)
      * [winpr,smartcard] refine locking for pcsc layer (#12451)
      * [codec,swscale] allow runtime loading of swscale (#12452)
      * Swscale fallback (#12454)
      * Sdl multi scaling support (#12456)
      * [packaging,flatpak] update runtime and dependencies (#12457)
      * [codec,video] add doxygen version details (#12458)
      * [github,templates] update templates (#12460)
      * [client,sdl] allow FREERDP_WLROOTS_HACK for all sessions (#12461)
      * [warnings,nodiscard] add log messages for failures (#12463)
      * [gdi,gdi] ignore empty rectangles (#12467)
      * Smartcard fix smartcard-login, pass rdpContext for abort (#12466)
      * [winpr,smartcard] fix compiler warnings (#12469)
      * [winpr,timezone] fix search for transition dates (#12468)
      * [client,common] improve /p help (#12471)
      * Scard logging refactored (#12472)
      * [emu,scard] fix smartcard emulation (#12475)
      * Sdl null cursor (#12474)

    - Version 3.23.0:
      * Sdl cleanup (#12202)
      * [client,sdl] do not apply window offset (#12205)
      * [client,sdl] add SDL_Error to exceptions (#12214)
      * Rdp monitor log (#12215)
      * [winpr,smartcard] implement some attributes (#12213)
      * [client,windows] Fix return value checks for mouse event functions (#12279)
      * [channels,rdpecam] fix sws context checks (#12272)
      * [client,windows] Enhance error handling and context validation (#12264)
      * [client,windows] Add window handle validation in RDP_EVENT_TYPE_WINDOW_NEW (#12261)
      * [client,sdl] fix multimon/fullscreen on wayland (#12248)
      * Vendor by app (#12207)
      * [core,gateway] relax TSG parsing (#12283)
      * [winpr,smartcard] simplify PCSC_ReadDeviceSystemName (#12273)
      * [client,windows] Implement complete keyboard indicator synchronization (#12268)
      * Fixes more more more (#12286)
      * Use application details for names (#12285)
      * warning cleanups (#12289)
      * Warning cleanup (#12291)
      * [client,windows] Enhance memory safety with NULL checks and resource protection (#12271)
      * [client,x11] apply /size:xx% only once (#12293)
      * Freerdp config test (#12295)
      * [winpr,smartcard] fix returned attribute length (#12296)
      * [client,SDL3] Fix properly handle smart-sizing with fullscreen (#12298)
      * [core,test] fix use after free (#12299)
      * Sign warnings (#12300)
      * [cmake,compiler] disable -Wjump-misses-init (#12301)
      * [codec,color] fix input length checks (#12302)
      * [client,sdl] improve cursor updates, fix surface sizes (#12303)
      * Sdl fullscreen (#12217)
      * [client,sdl] fix move constructor of SdlWindow (#12305)
      * [utils,smartcard] check stream length on padding (#12306)
      * [android] Fix invert scrolling default value mismatch (#12309)
      * Clear fix bounds checks (#12310)
      * Winpr attr nodiscard fkt ptr (#12311)
      * [codec,planar] fix missing destination bounds checks (#12312)
      * [codec,clear] fix destination checks (#12315)
      * NSC Codec fixes (#12317)
      * Freerdp api nodiscard (#12313)
      * [allocations] fix growth of preallocated buffers (#12319)
      * Rdpdr simplify (#12320)
      * Resource fix (#12323)
      * [winpr,utils] ensure message queue capacity (#12322)
      * [server,shadow] fix return and parameter checks (#12330)
      * Shadow fixes (#12331)
      * [rdtk,nodiscard] mark rdtk API nodiscard (#12329)
      * [client,x11] fix XGetWindowProperty return handling (#12334)
      * Win32 signal (#12335)
      * [channel,usb] fix message parsing and creation (#12336)
      * [cmake] Define WINPR_DEFINE_ATTR_NODISCARD (#12338)
      * Proxy config fix (#12345)
      * [codec,progressive] refine progressive decoding (#12347)
      * [client,sdl] fix sdl_Pointer_New (#12350)
      * [core,gateway] parse [MS-TSGU] 2.2.10.5 HTTP_CHANNEL_RESPONSE_OPTIONAL (#12353)
      * X11 kbd sym (#12354)
      * Windows compile warning fixes (#12357,#12358,#12359)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20632-1 advisory.

    Changes in freerdp2:

    - Update freerdp-3-macro:
      - Add WINPR_ATTR_MALLOC macro from freerdp 3

    - Security fixes for the following issues:
      * CVE-2026-25941: Fixed a out of bounds read (bsc#1258919)
      * CVE-2026-25942: Fixed a buffer overflow in xf_rail_server_execute_result() (bsc#1258920)
      * CVE-2026-27951: Fixed a denial of service in Stream_EnsureCapacity() (bsc#1258939)
      * CVE-2026-25997: Fixed a use-after-free in xf_clipboard_format_equal() (bsc#1258977)
      * CVE-2026-26986: Fixed a use-after-free in rail_window_free() (bsc#1258967)
      * CVE-2026-27015: Fixed a client denial of service via reachable assert (bsc#1258987)
      * CVE-2026-25952: Fixed a use-after-free in xf_SetWindowMinMaxInfo() (bsc#1258921)
      * CVE-2026-25953: Fixed a use-after-free in xf_AppUpdateWindowFromSurface() (bsc#1258923)
      * CVE-2026-25954: Fixed a use-after-free in xf_rail_server_local_move_size() (bsc#1258924)
      * CVE-2026-24684: Fixed a use-after-free in play_thread() (bsc#1257991).
      * CVE-2026-26271: Fixed a buffer overread in icon processing (bsc#1258979)
      * CVE-2026-26955: Fixed a out of bounds write (bsc#1258982)
      * CVE-2026-26965: Fixed a out of bounds write (bsc#1258985)
      * CVE-2026-31806: Fixed a buffer overflow via improper validation of server messages (bsc#1259653)
      * CVE-2026-31883: Fixed a buffer overflow via crafted audio format and wave data (bsc#1259679)
      * CVE-2026-31885: Fixed a out of bounds read (bsc#1259686)
      * CVE-2026-24491: Fix use-after-free that was accidentally introduced in the backport (bsc#1257981)
      * CVE-2026-22855: Fixed a buffer overflow in smartcard_unpack_set_attrib_call() (bsc#1256721)
      * CVE-2026-22857: Fixed a use-after-free in irp_thread_func() (bsc#1256723)
      * CVE-2026-23533: Fixed a buffer overflow in clear_decompress_residual_data() (bsc#1256943)
      * CVE-2026-23732: Fixed a buffer overflow in Glyph_Alloc() (bsc#1256945)
      * CVE-2026-23883: Fixed a use-after-free (bsc#1256946)
      * CVE-2026-23884: Fixed a use-after-free in gdi_set_bounds (bsc#1256947)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1640-1 advisory.

    - CVE-2026-25941: Out-of-Bounds Read in client RDPGFX channel via crafted `WIRE_TO_SURFACE_2` PDU     (bsc#1258919).
    - CVE-2026-25942: Global-buffer-overflow in `xf_rail_server_execute_result` (bsc#1258920).
    - CVE-2026-25952: Heap-use-after-free in `xf_SetWindowMinMaxInfo` (bsc#1258921).
    - CVE-2026-25953: Heap-use-after-free in `xf_AppUpdateWindowFromSurface` (bsc#1258923).
    - CVE-2026-25954: Heap-use-after-free in `xf_rail_server_local_move_size` (bsc#1258924).
    - CVE-2026-25997: Heap-use-after-free in `xf_clipboard_format_equal` (bsc#1258977).
    - CVE-2026-26986: Heap-use-after-free in `rail_window_free` (bsc#1258967).
    - CVE-2026-27015: Smartcard NDR alignment padding triggers reachable `WINPR_ASSERT` abort (bsc#1258987).
    - CVE-2026-27951: Denial of Service via endless blocking loop in `Stream_EnsureCapacity` (bsc#1258939).
    - CVE-2026-29774: Missing bounds validation can cause a client-side heap buffer overflow (bsc#1259689).
    - CVE-2026-29775: Malicious server can trigger a client-side heap out-of-bounds access (bsc#1259684).
    - CVE-2026-29776: Missing length check can lead to an integer underflow (bsc#1259692).
    - CVE-2026-31897: Missing length check can cause an out-of-bounds read (bsc#1259693).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1633-1 advisory.

    - CVE-2026-25941: Out-of-Bounds Read in client RDPGFX channel via crafted `WIRE_TO_SURFACE_2` PDU     (bsc#1258919).
    - CVE-2026-25942: Global-buffer-overflow in `xf_rail_server_execute_result` (bsc#1258920).
    - CVE-2026-25952: Heap-use-after-free in `xf_SetWindowMinMaxInfo` (bsc#1258921).
    - CVE-2026-25953: Heap-use-after-free in `xf_AppUpdateWindowFromSurface` (bsc#1258923).
    - CVE-2026-25954: Heap-use-after-free in `xf_rail_server_local_move_size` (bsc#1258924).
    - CVE-2026-25955: Heap-use-after-free in `xf_AppUpdateWindowFromSurface` (bsc#1258973).
    - CVE-2026-25959: Heap-use-after-free in `xf_cliprdr_provide_data_` (bsc#1258976).
    - CVE-2026-25997: Heap-use-after-free in `xf_clipboard_format_equal` (bsc#1258977).
    - CVE-2026-26986: Heap-use-after-free in `rail_window_free` (bsc#1258967).
    - CVE-2026-27015: Smartcard NDR alignment padding triggers reachable `WINPR_ASSERT` abort (bsc#1258987).
    - CVE-2026-27950: Denial of service due to incomplete fix for heap-use-after-free vulnerability     (bsc#1258941).
    - CVE-2026-27951: Denial of service via endless blocking loop in `Stream_EnsureCapacity` (bsc#1258939).
    - CVE-2026-29774: Missing bounds validation can cause a client-side heap buffer overflow (bsc#1259689).
    - CVE-2026-29775: Malicious server can trigger a client-side heap out-of-bounds access (bsc#1259684).
    - CVE-2026-29776: Missing length check can lead to an integer underflow (bsc#1259692).
    - CVE-2026-31897: Missing length check can cause an out-of-bounds read (bsc#1259693).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1634-1 advisory.

    - CVE-2026-25941: Out-of-Bounds Read in client RDPGFX channel via crafted `WIRE_TO_SURFACE_2` PDU     (bsc#1258919).
    - CVE-2026-25942: Global-buffer-overflow in `xf_rail_server_execute_result` (bsc#1258920).
    - CVE-2026-25952: Heap-use-after-free in `xf_SetWindowMinMaxInfo` (bsc#1258921).
    - CVE-2026-25953: Heap-use-after-free in `xf_AppUpdateWindowFromSurface` (bsc#1258923).
    - CVE-2026-25954: Heap-use-after-free in `xf_rail_server_local_move_size` (bsc#1258924).
    - CVE-2026-25997: Heap-use-after-free in `xf_clipboard_format_equal` (bsc#1258977).
    - CVE-2026-26986: Heap-use-after-free in `rail_window_free` (bsc#1258967).
    - CVE-2026-27015: Smartcard NDR alignment padding triggers reachable `WINPR_ASSERT` abort (bsc#1258987).
    - CVE-2026-27951: Denial of service via endless blocking loop in `Stream_EnsureCapacity` (bsc#1258939).
    - CVE-2026-29774: Missing bounds validation can cause a client-side heap buffer overflow (bsc#1259689).
    - CVE-2026-29775: Malicious server can trigger a client-side heap out-of-bounds access (bsc#1259684).
    - CVE-2026-29776: Missing length check can lead to an integer underflow (bsc#1259692).
    - CVE-2026-31897: Missing length check can cause an out-of-bounds read (bsc#1259693).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1632-1 advisory.

    - CVE-2026-25941: Out-of-Bounds Read in client RDPGFX channel via crafted `WIRE_TO_SURFACE_2` PDU     (bsc#1258919).
    - CVE-2026-25942: Global-buffer-overflow in `xf_rail_server_execute_result` (bsc#1258920).
    - CVE-2026-25952: Heap-use-after-free in `xf_SetWindowMinMaxInfo` (bsc#1258921).
    - CVE-2026-25953: Heap-use-after-free in `xf_AppUpdateWindowFromSurface` (bsc#1258923).
    - CVE-2026-25954: Heap-use-after-free in `xf_rail_server_local_move_size` (bsc#1258924).
    - CVE-2026-25997: Heap-use-after-free in `xf_clipboard_format_equal` (bsc#1258977).
    - CVE-2026-26986: Heap-use-after-free in `rail_window_free` (bsc#1258967).
    - CVE-2026-27015: Smartcard NDR alignment padding triggers reachable `WINPR_ASSERT` abort (bsc#1258987).
    - CVE-2026-27951: Denial of service via endless blocking loop in `Stream_EnsureCapacity` (bsc#1258939).
    - CVE-2026-29774: Missing bounds validation can cause a client-side heap buffer overflow (bsc#1259689).
    - CVE-2026-29775: Malicious server can trigger a client-side heap out-of-bounds access (bsc#1259684).
    - CVE-2026-29776: Missing length check can lead to an integer underflow (bsc#1259692).
    - CVE-2026-31897: Missing length check can cause an out-of-bounds read (bsc#1259693).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1635-1 advisory.

    - CVE-2026-25941: Out-of-Bounds Read in client RDPGFX channel via crafted `WIRE_TO_SURFACE_2` PDU     (bsc#1258919).
    - CVE-2026-25942: Global-buffer-overflow in `xf_rail_server_execute_result` (bsc#1258920).
    - CVE-2026-25952: Heap-use-after-free in `xf_SetWindowMinMaxInfo` (bsc#1258921).
    - CVE-2026-25953: Heap-use-after-free in `xf_AppUpdateWindowFromSurface` (bsc#1258923).
    - CVE-2026-25954: Heap-use-after-free in `xf_rail_server_local_move_size` (bsc#1258924).
    - CVE-2026-25997: Heap-use-after-free in `xf_clipboard_format_equal` (bsc#1258977).
    - CVE-2026-26986: Heap-use-after-free in `rail_window_free` (bsc#1258967).
    - CVE-2026-27015: Smartcard NDR alignment padding triggers reachable `WINPR_ASSERT` abort (bsc#1258987).
    - CVE-2026-27951: Denial of service via endless blocking loop in `Stream_EnsureCapacity` (bsc#1258939).
    - CVE-2026-29774: Missing bounds validation can cause a client-side heap buffer overflow (bsc#1259689).
    - CVE-2026-29775: Malicious server can trigger a client-side heap out-of-bounds access (bsc#1259684).
    - CVE-2026-29776: Missing length check can lead to an integer underflow (bsc#1259692).
    - CVE-2026-31897: Missing length check can cause an out-of-bounds read (bsc#1259693).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007185 advisory.

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_clipboard_format_equal` reads freed `lastSentFormats` memory because `xf_clipboard_formats_free`     (called from the cliprdr channel thread during auto-reconnect) frees the array while the X11 event thread     concurrently iterates it in `xf_clipboard_changed`, triggering a heap use after free. Version 3.23.0 fixes     the issue.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1512 advisory.

    FreeRDP is a free implementation of the Remote Desktop Protocol. Versions on the 2.x branch prior to to     2.11.8 and on the 3.x branch prior to 3.23.0 have an out-of-bounds read vulnerability in the FreeRDP     client's RDPGFX channel that allows a malicious RDP server to read uninitialized heap memory by sending a     crafted WIRE_TO_SURFACE_2 PDU with a `bitmapDataLength` value larger than the actual data in the packet.
    This can lead to information disclosure or client crashes when a user connects to a malicious server.
    Versions 2.11.8 and 3.23.0 fix the issue. (CVE-2026-25941)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_rail_server_execute_result` indexes the global `error_code_names[]` array (7 elements, indices 0-6)     with an unchecked `execResult->execResult` value received from the server, allowing an out-of-bounds read     when the server sends an `execResult` value of 7 or greater. Version 3.23.0 fixes the issue.
    (CVE-2026-25942)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_SetWindowMinMaxInfo` dereferences a freed `xfAppWindow` pointer because `xf_rail_get_window` in     `xf_rail_server_min_max_info` returns an unprotected pointer from the `railWindows` hash table, and the     main thread can concurrently delete the window (via a window delete order) while the RAIL channel thread     is still using the pointer. Version 3.23.0 fixes the issue. (CVE-2026-25952)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_AppUpdateWindowFromSurface` reads from a freed `xfAppWindow` because the RDPGFX DVC thread obtains a     bare pointer via `xf_rail_get_window` without any lifetime protection, while the main thread can     concurrently delete the window through a fastpath window-delete order. Version 3.23.0 fixes the issue.
    (CVE-2026-25953)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_rail_server_local_move_size` dereferences a freed `xfAppWindow` pointer because `xf_rail_get_window`     returns an unprotected pointer from the `railWindows` hash table, and the main thread can concurrently     delete the window (via a window delete order) while the RAIL channel thread is still using the pointer.
    Version 3.23.0 fixes the issue. (CVE-2026-25954)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_AppUpdateWindowFromSurface` reuses a cached `XImage` whose `data` pointer references a freed RDPGFX     surface buffer, because `gdi_DeleteSurface` frees `surface->data` without invalidating the     `appWindow->image` that aliases it. Version 3.23.0 fixes the issue. (CVE-2026-25955)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_cliprdr_provide_data_` passes freed `pDstData` to `XChangeProperty` because the cliprdr channel thread     calls `xf_cliprdr_server_format_data_response` which converts and uses the clipboard data without holding     any lock, while the X11 event thread concurrently calls `xf_cliprdr_clear_cached_data` - `HashTable_Clear`     which frees the same data via `xf_cached_data_free`, triggering a heap use after free. Version 3.23.0     fixes the issue. (CVE-2026-25959)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_clipboard_format_equal` reads freed `lastSentFormats` memory because `xf_clipboard_formats_free`     (called from the cliprdr channel thread during auto-reconnect) frees the array while the X11 event thread     concurrently iterates it in `xf_clipboard_changed`, triggering a heap use after free. Version 3.23.0 fixes     the issue. (CVE-2026-25997)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a buffer     overread in `freerdp_image_copy_from_icon_data()` (libfreerdp/codec/color.c) can be triggered by crafted     RDP Window Icon (TS_ICON_INFO) data. The bug is reachable over the network when a client processes icon     data from an RDP server (or from a man-in-the-middle). Version 3.23.0 fixes the issue. (CVE-2026-26271)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `rail_window_free` dereferences a freed `xfAppWindow` pointer during `HashTable_Free` cleanup because     `xf_rail_window_common` calls `free(appWindow)` on title allocation failure without first removing the     entry from the `railWindows` hash table, leaving a dangling pointer that is freed again on disconnect.
    Version 3.23.0 fixes the vulnerability. (CVE-2026-26986)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a missing bounds     check in `smartcard_unpack_read_size_align()` (`libfreerdp/utils/smartcard_pack.c:1703`) allows a     malicious RDP server to crash the FreeRDP client via a reachable `WINPR_ASSERT` - `abort()`. The crash     occurs in upstream builds where `WITH_VERBOSE_WINPR_ASSERT=ON` (default in FreeRDP 3.22.0 / current WinPR     CMake defaults). Smartcard redirection must be explicitly enabled by the user (e.g., `xfreerdp     /smartcard`; `/smartcard-logon` implies `/smartcard`). Version 3.23.0 fixes the issue. (CVE-2026-27015)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the fix for the     heap-use-after-free described in CVE-2026-24680 is incomplete. While the vulnerable execution flow     referenced in the advisory exists in the SDL2 implementation, the fix appears to have been applied only to     the SDL3 code path. In the SDL2 implementation, the pointer is not nulled after free. This creates a     situation where the advisory suggests the vulnerability is fully resolved, while builds or environments     still using SDL2 may retain the vulnerable logic. A complete fix is available in version 3.23.0.
    (CVE-2026-27950)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the function     `Stream_EnsureCapacity` can create an endless blocking loop. This may affect all client and server     implementations using `FreeRDP`. For practical exploitation this will only work on 32bit systems where the     available physical memory is `>= SIZE_MAX`. Version 3.23.0 contains a patch. No known workarounds are     available. (CVE-2026-27951)

    A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol (RDP). The     `gdi_surface_bits()` function, which processes `SURFACE_BITS_COMMAND` messages, does not properly validate     image dimensions (`bmp.width` and `bmp.height`) provided by a malicious RDP server. This can lead to a     heap buffer overflow during bitmap decoding and memory operations. A remote attacker could exploit this to     overwrite adjacent memory, potentially resulting in arbitrary code execution. (CVE-2026-31806)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of freerdp installed on the remote host is prior to 2.11.7-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3221 advisory.

    FreeRDP is a free implementation of the Remote Desktop Protocol. Versions on the 2.x branch prior to to     2.11.8 and on the 3.x branch prior to 3.23.0 have an out-of-bounds read vulnerability in the FreeRDP     client's RDPGFX channel that allows a malicious RDP server to read uninitialized heap memory by sending a     crafted WIRE_TO_SURFACE_2 PDU with a `bitmapDataLength` value larger than the actual data in the packet.
    This can lead to information disclosure or client crashes when a user connects to a malicious server.
    Versions 2.11.8 and 3.23.0 fix the issue. (CVE-2026-25941)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_rail_server_execute_result` indexes the global `error_code_names[]` array (7 elements, indices 0-6)     with an unchecked `execResult->execResult` value received from the server, allowing an out-of-bounds read     when the server sends an `execResult` value of 7 or greater. Version 3.23.0 fixes the issue.
    (CVE-2026-25942)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_SetWindowMinMaxInfo` dereferences a freed `xfAppWindow` pointer because `xf_rail_get_window` in     `xf_rail_server_min_max_info` returns an unprotected pointer from the `railWindows` hash table, and the     main thread can concurrently delete the window (via a window delete order) while the RAIL channel thread     is still using the pointer. Version 3.23.0 fixes the issue. (CVE-2026-25952)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_AppUpdateWindowFromSurface` reads from a freed `xfAppWindow` because the RDPGFX DVC thread obtains a     bare pointer via `xf_rail_get_window` without any lifetime protection, while the main thread can     concurrently delete the window through a fastpath window-delete order. Version 3.23.0 fixes the issue.
    (CVE-2026-25953)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_rail_server_local_move_size` dereferences a freed `xfAppWindow` pointer because `xf_rail_get_window`     returns an unprotected pointer from the `railWindows` hash table, and the main thread can concurrently     delete the window (via a window delete order) while the RAIL channel thread is still using the pointer.
    Version 3.23.0 fixes the issue. (CVE-2026-25954)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_clipboard_format_equal` reads freed `lastSentFormats` memory because `xf_clipboard_formats_free`     (called from the cliprdr channel thread during auto-reconnect) frees the array while the X11 event thread     concurrently iterates it in `xf_clipboard_changed`, triggering a heap use after free. Version 3.23.0 fixes     the issue. (CVE-2026-25997)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a buffer     overread in `freerdp_image_copy_from_icon_data()` (libfreerdp/codec/color.c) can be triggered by crafted     RDP Window Icon (TS_ICON_INFO) data. The bug is reachable over the network when a client processes icon     data from an RDP server (or from a man-in-the-middle). Version 3.23.0 fixes the issue. (CVE-2026-26271)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `rail_window_free` dereferences a freed `xfAppWindow` pointer during `HashTable_Free` cleanup because     `xf_rail_window_common` calls `free(appWindow)` on title allocation failure without first removing the     entry from the `railWindows` hash table, leaving a dangling pointer that is freed again on disconnect.
    Version 3.23.0 fixes the vulnerability. (CVE-2026-26986)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a missing bounds     check in `smartcard_unpack_read_size_align()` (`libfreerdp/utils/smartcard_pack.c:1703`) allows a     malicious RDP server to crash the FreeRDP client via a reachable `WINPR_ASSERT` - `abort()`. The crash     occurs in upstream builds where `WITH_VERBOSE_WINPR_ASSERT=ON` (default in FreeRDP 3.22.0 / current WinPR     CMake defaults). Smartcard redirection must be explicitly enabled by the user (e.g., `xfreerdp     /smartcard`; `/smartcard-logon` implies `/smartcard`). Version 3.23.0 fixes the issue. (CVE-2026-27015)

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the function     `Stream_EnsureCapacity` can create an endless blocking loop. This may affect all client and server     implementations using `FreeRDP`. For practical exploitation this will only work on 32bit systems where the     available physical memory is `>= SIZE_MAX`. Version 3.23.0 contains a patch. No known workarounds are     available. (CVE-2026-27951)

    A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol (RDP). The     `gdi_surface_bits()` function, which processes `SURFACE_BITS_COMMAND` messages, does not properly validate     image dimensions (`bmp.width` and `bmp.height`) provided by a malicious RDP server. This can lead to a     heap buffer overflow during bitmap decoding and memory operations. A remote attacker could exploit this to     overwrite adjacent memory, potentially resulting in arbitrary code execution. (CVE-2026-31806)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 24.04 LTS / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8105-1 advisory.

    It was discovered that FreeRDP incorrectly handled certain RDP packets. A remote attacker could use this     issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-53fe996a57 advisory.

    Update to 3.23.0 to fix CVE-2026-26965, CVE-2026-26955, CVE-2026-26271, CVE-2026-25997, CVE-2026-25959,     CVE-2026-25955, CVE-2026-25954, CVE-2026-25953, CVE-2026-25952, CVE-2026-25942, CVE-2026-25941



Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-a160e550ec advisory.

    Update to 3.23.0 to fix CVE-2026-26965, CVE-2026-26955, CVE-2026-26271, CVE-2026-25997, CVE-2026-25959,     CVE-2026-25955, CVE-2026-25954, CVE-2026-25953, CVE-2026-25952, CVE-2026-25942, CVE-2026-25941

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-be60dd75d9 advisory.

    Update to 3.23.0 to fix CVE-2026-26965, CVE-2026-26955, CVE-2026-26271, CVE-2026-25997, CVE-2026-25959,     CVE-2026-25955, CVE-2026-25954, CVE-2026-25953, CVE-2026-25952, CVE-2026-25942, CVE-2026-25941


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0,     `xf_clipboard_format_equal` reads freed `lastSentFormats` memory because `xf_clipboard_formats_free`     (called from the cliprdr channel thread during auto-reconnect) frees the array while the X11 event thread     concurrently iterates it in `xf_clipboard_changed`, triggering a heap use after free. Version 3.23.0 fixes     the issue. (CVE-2026-25997)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
312138	SUSE SLES16 Security Update : freerdp (SUSE-SU-2026:21436-1)	Nessus	SuSE Local Security Checks	critical
312116	openSUSE 16 Security Update : freerdp (openSUSE-SU-2026:20657-1)	Nessus	SuSE Local Security Checks	critical
311767	openSUSE 16 Security Update : freerdp2 (openSUSE-SU-2026:20632-1)	Nessus	SuSE Local Security Checks	critical
311755	SUSE SLED15 / SLES15 Security Update : freerdp2 (SUSE-SU-2026:1640-1)	Nessus	SuSE Local Security Checks	critical
310650	SUSE SLED15 / SLES15 Security Update : freerdp (SUSE-SU-2026:1633-1)	Nessus	SuSE Local Security Checks	medium
310649	SUSE SLES15 Security Update : freerdp (SUSE-SU-2026:1634-1)	Nessus	SuSE Local Security Checks	medium
310648	SUSE SLES15 Security Update : freerdp (SUSE-SU-2026:1632-1)	Nessus	SuSE Local Security Checks	medium
310647	SUSE SLES12 Security Update : freerdp (SUSE-SU-2026:1635-1)	Nessus	SuSE Local Security Checks	medium
306813	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: freerdp (UTSA-2026-007185)	Nessus	Unity Linux Local Security Checks	medium
304607	Amazon Linux 2023 : freerdp, freerdp-devel, freerdp-libs (ALAS2023-2026-1512)	Nessus	Amazon Linux Local Security Checks	critical
304573	Amazon Linux 2 : freerdp, --advisory ALAS2-2026-3221 (ALAS-2026-3221)	Nessus	Amazon Linux Local Security Checks	critical
303026	Ubuntu 24.04 LTS / 25.10 : FreeRDP vulnerabilities (USN-8105-1)	Nessus	Ubuntu Local Security Checks	high
302248	Fedora 42 : freerdp (2026-53fe996a57)	Nessus	Fedora Local Security Checks	medium
301321	Fedora 44 : freerdp (2026-a160e550ec)	Nessus	Fedora Local Security Checks	medium
300389	Fedora 43 : freerdp (2026-be60dd75d9)	Nessus	Fedora Local Security Checks	medium
299996	Linux Distros Unpatched Vulnerability : CVE-2026-25997	Nessus	Misc.	medium

Detections

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CVE-2026-25997

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Tenable Plugins

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medium

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