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ALSA-2026:36203 — Important: freerdp security update

Affected: AlmaLinux:10: freerdp, AlmaLinux:10: freerdp-devel, AlmaLinux:10: freerdp-libs, AlmaLinux:10: freerdp-server, AlmaLinux:10: libwinpr, AlmaLinux:10: 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: Remote code execution via heap-buffer-overflow in gdi_CacheToSurface (CVE-2026-40033) * freerdp: FreeRDP: Arbitrary code execution or denial of service via heap use-after-free in RDPEAR NDR parser (CVE-2026-44422) * freerdp: FreeRDP: Out-of-bounds write in planar bitmap decoder allows arbitrary code execution (CVE-2026-45700) * freerdp: FreeRDP: Arbitrary code execution via crafted RDPGFX PDUs (CVE-2026-44421) * freerdp: FreeRDP: Arbitrary code execution and denial of service via heap-buffer-overflow (CVE-2026-44420)

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.

bdu:2026-07646

EUVD-2026-341169

fkie_cve-2026-44420

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP client can trigger a heap-buffer-overflow write in FreeRDP's server-side clipboard (cliprdr) channel by sending a CB_CLIP_CAPS PDU with a too-small capabilitySetLength. This can crash the server process (remote DoS) and may be exploitable for code execution because it corrupts heap memory. This vulnerability is fixed in 3.26.0.

openSUSE-SU-2026:10948-1 — freerdp-3.26.0-3.1 on GA media

freerdp-3.26.0-3.1 on GA media

RHSA-2026:46393 — Red Hat Security Advisory: freerdp security update

freerdp: FreeRDP: Remote code execution via heap-buffer-overflow in gdi_CacheToSurface freerdp: FreeRDP: Arbitrary code execution and denial of service via heap-buffer-overflow freerdp: FreeRDP: Arbitrary code execution via crafted RDPGFX PDUs freerdp: FreeRDP: Arbitrary code execution or denial of service via heap use-after-free in RDPEAR NDR parser freerdp: FreeRDP: Out-of-bounds write in planar bitmap decoder allows arbitrary code execution

RLSA-2026:36203 — Important: freerdp security update

Affected: Rocky Linux:10: freerdp

Security Fix(es):

* freerdp: FreeRDP: Remote code execution via heap-buffer-overflow in gdi_CacheToSurface (CVE-2026-40033)

* freerdp: FreeRDP: Arbitrary code execution or denial of service via heap use-after-free in RDPEAR NDR parser (CVE-2026-44422)

* freerdp: FreeRDP: Out-of-bounds write in planar bitmap decoder allows arbitrary code execution (CVE-2026-45700)

* freerdp: FreeRDP: Arbitrary code execution via crafted RDPGFX PDUs (CVE-2026-44421)

* freerdp: FreeRDP: Arbitrary code execution and denial of service via heap-buffer-overflow (CVE-2026-44420)

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.

SUSE-SU-2026:22194-1 — Security update for freerdp

Security update for freerdp

UBUNTU-CVE-2026-44420

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-2026-1470 — FreeRDP: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in FreeRDP ausnutzen, um beliebigen Programmcode auszuführen, einen Denial-of-Service-Zustand zu verursachen oder nicht näher spezifizierte Angriffe durchzuführen.