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 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-2026-26271

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a buffer overread in freerdpimagecopyfromicondata libfreerdp/codec/color.c can be triggered by crafted RDP Window Icon TSICONINFO data. The bug is reachable over the network when a client processes icon data...

CVE-2026-26271 Buffer Overread in FreeRDP Icon Processing

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a buffer overread in freerdpimagecopyfromicondata libfreerdp/codec/color.c can be triggered by crafted RDP Window Icon TSICONINFO data. The bug is reachable over the network when a client processes icon data...

CVE-2026-26271

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a buffer overread in freerdpimagecopyfromicondata libfreerdp/codec/color.c can be triggered by crafted RDP Window Icon TSICONINFO data. The bug is reachable over the network when a client processes icon data...

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-2026-25954

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfrailserverlocalmovesize dereferences a freed xfAppWindow pointer because xfrailgetwindow returns an unprotected pointer from the railWindows hash table, and the main thread can concurrently delete the wind...

CVE-2026-25954 FreeRDP has heap-use-after-free in xf_rail_server_local_move_size

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfrailserverlocalmovesize dereferences a freed xfAppWindow pointer because xfrailgetwindow returns an unprotected pointer from the railWindows hash table, and the main thread can concurrently delete the wind...

CVE-2026-25954

CVE-2026-25954 affects FreeRDP. The vulnerability arises in the RAIL path where xf_rail_get_window returns a pointer from the railWindows hash table that is freed by the main thread while the RAIL channel thread is still using it, allowing dereferencing of a freed xfAppWindow pointer. This race c...

CVE-2026-25954 FreeRDP has heap-use-after-free in xf_rail_server_local_move_size

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfrailserverlocalmovesize dereferences a freed xfAppWindow pointer because xfrailgetwindow returns an unprotected pointer from the railWindows hash table, and the main thread can concurrently delete the wind...

CVE-2026-25954

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfrailserverlocalmovesize dereferences a freed xfAppWindow pointer because xfrailgetwindow returns an unprotected pointer from the railWindows hash table, and the main thread can concurrently delete the wind...

CVE-2026-25953 FreeRDP has heap-use-after-free in xf_AppUpdateWindowFromSurface (freed appWindow)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfAppUpdateWindowFromSurface reads from a freed xfAppWindow because the RDPGFX DVC thread obtains a bare pointer via xfrailgetwindow without any lifetime protection, while the main thread can concurrently...

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-2026-25953 FreeRDP has heap-use-after-free in xf_AppUpdateWindowFromSurface (freed appWindow)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfAppUpdateWindowFromSurface reads from a freed xfAppWindow because the RDPGFX DVC thread obtains a bare pointer via xfrailgetwindow without any lifetime protection, while the main thread can concurrently...

CVE-2026-25953

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfAppUpdateWindowFromSurface reads from a freed xfAppWindow because the RDPGFX DVC thread obtains a bare pointer via xfrailgetwindow without any lifetime protection, while the main thread can concurrently...

CVE-2026-25953

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfAppUpdateWindowFromSurface reads from a freed xfAppWindow because the RDPGFX DVC thread obtains a bare pointer via xfrailgetwindow without any lifetime protection, while the main thread can concurrently...

CVE-2026-25952 FreeRDP has heap-use-after-free in xf_SetWindowMinMaxInfo

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfSetWindowMinMaxInfo dereferences a freed xfAppWindow pointer because xfrailgetwindow in xfrailserverminmaxinfo returns an unprotected pointer from the railWindows hash table, and the main thread can...

CVE-2026-25952 FreeRDP has heap-use-after-free in xf_SetWindowMinMaxInfo

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfSetWindowMinMaxInfo dereferences a freed xfAppWindow pointer because xfrailgetwindow in xfrailserverminmaxinfo returns an unprotected pointer from the railWindows hash table, and the main thread can...