The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:6340 advisory.

    * freerdp: FreeRDP heap-use-after-free (CVE-2026-22856)
      * freerdp: FreeRDP heap-buffer-overflow (CVE-2026-22854)
      * freerdp: FreeRDP heap-buffer-overflow (CVE-2026-22852)
      * freerdp: FreeRDP: Denial of Service via FastGlyph parsing buffer overflow (CVE-2026-23732)
      * freerdp: FreeRDP: Denial of Service via use-after-free in AUDIN format renegotiation (CVE-2026-24676)
      * freerdp: FreeRDP has a heap-use-after-free in video_timer (CVE-2026-24491)
      * freerdp: FreeRDP has a NULL Pointer Dereference in rdp_write_logon_info_v2() (CVE-2026-23948)
      * freerdp: FreeRDP has a Heap-use-after-free in play_thread (CVE-2026-24684)
      * freerdp: FreeRDP has a heap-use-after-free in urb_bulk_transfer_cb (CVE-2026-24681)
      * freerdp: FreeRDP has a heap-use-after-free in ainput_send_input_event (CVE-2026-24683)
      * freerdp: FreeRDP has a heap-buffer-overflow in urb_select_interface (CVE-2026-24679)
      * freerdp: FreeRDP has a Heap-use-after-free in urb_select_interface (CVE-2026-24675)
      * freerdp: FreeRDP: Arbitrary code execution via crafted Remote Desktop Protocol (RDP) server messages     (CVE-2026-31806)

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.

Detections

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AlmaLinux 9 : freerdp (ALSA-2026:6340)

critical Nessus Plugin ID 304739

Version 1.2

Version 1.1

Version 1.2 Apr 4, 2026, 6:55 AM New Plugin Feed: 202604040655
Version 1.1 Apr 3, 2026, 3:52 PM New Plugin Feed: 202604031552