The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:8945 advisory.

    * FreeRDP: FreeRDP: Heap buffer overflow allows arbitrary code execution via crafted pixel data     (CVE-2026-33984)
      * FreeRDP: FreeRDP: Denial of Service via specially crafted Remote Desktop Protocol messages     (CVE-2026-33983)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:10709 advisory.

    FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license.
    The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

    Security Fix(es):

    * FreeRDP: FreeRDP: Heap buffer overflow allows arbitrary code execution via crafted pixel data     (CVE-2026-33984)

    * FreeRDP: FreeRDP: Denial of Service via specially crafted Remote Desktop Protocol messages     (CVE-2026-33983)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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-2026-07418a381f advisory.

    Update to 3.24.2

    It fixes CVE-2026-33952, CVE-2026-33977, CVE-2026-33982, CVE-2026-33983,     CVE-2026-33984, CVE-2026-33985, CVE-2026-33986, CVE-2026-33987 and     CVE-2026-33995.

    ----

    Update to 3.24.0 (CVE-2026-29774, CVE-2026-29775, CVE-2026-29776, CVE-2026-31806, CVE-2026-31883,     CVE-2026-31884, CVE-2026-31885, CVE-2026-31897)

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 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.

ID	Name	Product	Family	Published	Updated	Severity
307595	AlmaLinux 8 : freerdp (ALSA-2026:8945)	Nessus	Alma Linux Local Security Checks	4/20/2026	4/20/2026	high
310409	RHEL 9 : freerdp (RHSA-2026:10709)	Nessus	Red Hat Local Security Checks	4/27/2026	4/27/2026	high
304936	Fedora 42 : freerdp (2026-07418a381f)	Nessus	Fedora Local Security Checks	4/5/2026	4/5/2026	critical
312116	openSUSE 16 Security Update : freerdp (openSUSE-SU-2026:20657-1)	Nessus	SuSE Local Security Checks	5/5/2026	5/5/2026	critical

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