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ALSA-2026:6340 — Important: freerdp security update

Affected: AlmaLinux:9: freerdp, AlmaLinux:9: freerdp-devel, AlmaLinux:9: freerdp-libs, AlmaLinux:9: libwinpr, AlmaLinux:9: libwinpr-devel

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-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)

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

bdu:2026-00626

EUVD-2026-270996

fkie_cve-2026-22854

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a heap-buffer-overflow occurs in drive read when a server-controlled read length is used to read file data into an IRP output stream buffer without a hard upper bound, allowing an oversized read to overwrite heap memory. This vulnerability is fixed in 3.20.1.

OESA-2026-1401 — freerdp security update

Affected: openEuler:24.03-LTS-SP2: freerdp

FreeRDP is a client implementation of the Remote Desktop Protocol (RDP) that follows Microsoft&apos;s open specifications. This package provides the client applications xfreerdp. Security Fix(es):

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.20.1, a heap buffer overflow vulnerability exists in the `drive_process_irp_read` function. When processing drive read requests, the function uses a server-controlled read length to copy file data into an IRP output stream buffer, but lacks a hard upper bound on this length. A malicious server can exploit this flaw by issuing an oversized read request, triggering a heap buffer overflow on the client side. This can lead to application crash (Denial of Service) and heap memory corruption, with potential code execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22854)

openSUSE-SU-2026:10059-1 — freerdp-3.20.2-1.1 on GA media

freerdp-3.20.2-1.1 on GA media

RHSA-2026:10076 — Red Hat Security Advisory: freerdp security update

freerdp: FreeRDP heap-buffer-overflow freerdp: FreeRDP heap-buffer-overflow freerdp: FreeRDP heap-use-after-free freerdp: FreeRDP: Denial of Service via FastGlyph parsing buffer overflow freerdp: FreeRDP has a NULL Pointer Dereference in rdp_write_logon_info_v2() freerdp: FreeRDP has a heap-use-after-free in video_timer freerdp: FreeRDP has a Heap-use-after-free in urb_select_interface freerdp: FreeRDP: Denial of Service via use-after-free in AUDIN format renegotiation freerdp: FreeRDP has a heap-buffer-overflow in urb_select_interface freerdp: FreeRDP has a Heap-use-after-free in play_thread freerdp: FreeRDP: Arbitrary code execution via crafted Remote Desktop Protocol (RDP) server messages

SUSE-SU-2026:0417-1 — Security update for freerdp

Security update for freerdp

UBUNTU-CVE-2026-22854

Affected: Ubuntu:16.04:LTS: freerdp, Ubuntu:Pro:18.04:LTS: freerdp2, Ubuntu:18.04:LTS: freerdp, Ubuntu:Pro:20.04:LTS: freerdp2, Ubuntu:22.04:LTS: freerdp2, Ubuntu:24.04:LTS: freerdp3, Ubuntu:Pro:24.04:LTS: freerdp2, Ubuntu:25.10: freerdp3, Ubuntu:26.04:LTS: freerdp3

WID-SEC-W-2026-0111 — FreeRDP: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen in FreeRDP ausnutzen,um möglicherweise einen Denial-of-Service-Zustand zu verursachen, beliebigen Code auszuführen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.