CVE-2026-27950

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the fix for the heap-use-after-free described in CVE-2026-24680 is incomplete. While the vulnerable execution flow referenced in the advisory exists in the SDL2 implementation, the fix appears to have been...

CVE-2026-27950 FreeRDP heap-use-after-free in update_pointer_new(SDL): Fix Applied in the Wrong File

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the fix for the heap-use-after-free described in CVE-2026-24680 is incomplete. While the vulnerable execution flow referenced in the advisory exists in the SDL2 implementation, the fix appears to have been...

CVE-2026-26986 FreeRDP has heap-use-after-free in rail_window_free

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, railwindowfree dereferences a freed xfAppWindow pointer during HashTableFree cleanup because xfrailwindowcommon calls freeappWindow on title allocation failure without first removing the entry from the...

CVE-2026-26986

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, railwindowfree dereferences a freed xfAppWindow pointer during HashTableFree cleanup because xfrailwindowcommon calls freeappWindow on title allocation failure without first removing the entry from the...

CVE-2026-26986

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, railwindowfree dereferences a freed xfAppWindow pointer during HashTableFree cleanup because xfrailwindowcommon calls freeappWindow on title allocation failure without first removing the entry from the...

CVE-2026-26986

CVE-2026-26986 affects FreeRDP prior to version 3.23.0. The root cause is a use-after-free: during HashTable_Free cleanup, xf_rail_window_common frees appWindow without first removing the corresponding entry from the railWindows hash table, leaving a dangling pointer that is freed again on discon...

CVE-2026-26986 FreeRDP has heap-use-after-free in rail_window_free

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, railwindowfree dereferences a freed xfAppWindow pointer during HashTableFree cleanup because xfrailwindowcommon calls freeappWindow on title allocation failure without first removing the entry from the...

CVE-2026-26965 FreeRDP has Out-of-bounds Write

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, in the RLE planar decode path, planardecompressplanerle writes into pDstData at nYDst+y nDstStep + 4nXDst + nChannel without verifying that nYDst+nSrcHeight fits in the destination height or that...

CVE-2026-26965

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, in the RLE planar decode path, planardecompressplanerle writes into pDstData at nYDst+y nDstStep + 4nXDst + nChannel without verifying that nYDst+nSrcHeight fits in the destination height or that...

CVE-2026-26965 FreeRDP has Out-of-bounds Write

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, in the RLE planar decode path, planardecompressplanerle writes into pDstData at nYDst+y nDstStep + 4nXDst + nChannel without verifying that nYDst+nSrcHeight fits in the destination height or that...

EUVD-2026-8740

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, in the RLE planar decode path, planardecompressplanerle writes into pDstData at nYDst+y nDstStep + 4nXDst + nChannel without verifying that nYDst+nSrcHeight fits in the destination height or that...

CVE-2026-26965 FreeRDP has Out-of-bounds Write

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, in the RLE planar decode path, planardecompressplanerle writes into pDstData at nYDst+y nDstStep + 4nXDst + nChannel without verifying that nYDst+nSrcHeight fits in the destination height or that...

CVE-2026-26965

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, in the RLE planar decode path, planardecompressplanerle writes into pDstData at nYDst+y nDstStep + 4nXDst + nChannel without verifying that nYDst+nSrcHeight fits in the destination height or that...

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-2026-26955 FreeRDP has Out-of-bounds Write

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-2026-26955

Summary (CVE-2026-26955): FreeRDP prior to 3.23.0 is affected by a heap-based overflow in the GDI surface pipeline when processing an RDPGFX ClearCodec surface command. The handler does not validate the destination rectangle against the surface dimensions, allowing attacker-controlled cmd->lef...

CVE-2026-26955 FreeRDP has Out-of-bounds Write

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-2026-26955 FreeRDP has Out-of-bounds Write

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-2026-26955

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...

EUVD-2026-8741

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a missing bounds check in smartcardunpackreadsizealign libfreerdp/utils/smartcardpack.c:1703 allows a malicious RDP server to crash the FreeRDP client via a reachable WINPRASSERT → abort. The crash occurs in...