UBUNTU-CVE-2026-44421

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client by sending crafted RDPGFX PDUs. The bug is in gdiCacheToSurface: it validates a destination rectangle that is clamped to UINT16MA...

CVE-2026-44421

CVE-2026-44421 affects FreeRDP prior to 3.26.0. A malicious RDP server can trigger a heap-buffer-overflow in the client via crafted RDPGFX PDUs in gdi_CacheToSurface, by validating a destination rectangle clamped to UINT16_MAX but copying using the original cacheEntry->width/height, causing a ...

CVE-2026-44421

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client by sending crafted RDPGFX PDUs. The bug is in gdiCacheToSurface: it validates a destination rectangle that is clamped to UINT16MA...

OESA-2026-2440 freerdp security update

FreeRDP is a client implementation of the Remote Desktop Protocol RDP that follows Microsoft's open specifications. This package provides the client applications xfreerdp. Security Fixes: A malicious server can trigger a client-side global buffer overflow, causing a crash denial of...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: freerdp (UTSA-2026-007207)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007207 advisory. FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, in ClearCodec, when glyphData is present, cleardecompress calls...

Important: freerdp

Issue Overview: 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...

CVE-2026-26955

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol RDP. A malicious RDP server can exploit a heap buffer overflow vulnerability by sending a specially crafted graphics command to a FreeRDP client. This allows the server to write data outside of its intended memory...

CVE-2026-26955

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a malicious RDP server can trigger a heap buffer overflow in FreeRDP clients using the GDI surface pipeline e.g., xfreerdp by sending an RDPGFX ClearCodec surface command with an out-of-bounds destination...

CVE-2026-25955 FreeRDP has heap-use-after-free in xf_AppUpdateWindowFromSurface (stale XImage)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfAppUpdateWindowFromSurface reuses a cached XImage whose data pointer references a freed RDPGFX surface buffer, because gdiDeleteSurface frees surface-data without invalidating the appWindow-image that...

CVE-2026-25955

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfAppUpdateWindowFromSurface reuses a cached XImage whose data pointer references a freed RDPGFX surface buffer, because gdiDeleteSurface frees surface-data without invalidating the appWindow-image that...

CVE-2026-25953

CVE-2026-25953 (FreeRDP) : A use-after-free condition exists in FreeRDP prior to 3.23.0 where the RDPGFX DVC thread obtains a bare pointer to an xfAppWindow via xf_rail_get_window. The main thread can concurrently delete the window (via a fastpath window-delete order), causing xf_AppUpdateWindowF...

CVE-2026-25941 FreeRDP: vuln_1_15_1 RDPGFX WIRE_TO_SURFACE_2 Out-of-Bounds Read

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...

freerdp: FreeRDP: Heap buffer overflow via crafted RDPGFX surface updates leads to denial of service and potential code execution.

A flaw was found in FreeRDP. A malicious server can exploit an out-of-bounds read/write vulnerability in the ClearCodec component by sending crafted RDPGFX surface updates. This can trigger a client-side heap buffer overflow, leading to a crash Denial of Service DoS and potential heap corruption...

Important: Red Hat Security Advisory: freerdp security update

An update for freerdp is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service. Red Hat Product Security has rated this update as...

freerdp: FreeRDP: Heap buffer overflow leads to denial of service and potential code execution

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. A malicious server can exploit a client-side heap buffer overflow vulnerability in the RDPGFX ClearCodec decode path. This occurs when maliciously crafted residual data causes out-of-bounds writes during color...

RHEL 8 : freerdp (RHSA-2026:3038)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:3038 advisory. FreeRDP is a free implementation of the Remote Desktop Protocol RDP, released under the Apache license. The xfreerdp client can connect to R...

RHEL 8 : freerdp (RHSA-2026:3036)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:3036 advisory. FreeRDP is a free implementation of the Remote Desktop Protocol RDP, released under the Apache license. The xfreerdp client can connect to R...

freerdp: FreeRDP: Heap buffer overflow leads to denial of service and potential code execution

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. A malicious server can exploit a client-side heap buffer overflow vulnerability in the RDPGFX ClearCodec decode path. This occurs when maliciously crafted residual data causes out-of-bounds writes during color...

freerdp: FreeRDP: Heap buffer overflow via crafted RDPGFX surface updates leads to denial of service and potential code execution.

A flaw was found in FreeRDP. A malicious server can exploit an out-of-bounds read/write vulnerability in the ClearCodec component by sending crafted RDPGFX surface updates. This can trigger a client-side heap buffer overflow, leading to a crash Denial of Service DoS and potential heap corruption...

Medium: freerdp

Issue Overview: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a race condition between the RDPGFX dynamic virtual channel thread and the SDL render thread leads to a heap use-after-free. Specifically, an escaped pointer to sdl-primary SDLSurface is accessed aft...