EUVD-2026-51819

FreeRDP before 3.29.0 contains a null pointer dereference vulnerability in smartcard cache request decoders that accept NULL NDR pointers for LookupName in SCARDIOCTLREADCACHEA and SCARDIOCTLWRITECACHEA operations. When smartcard emulation is enabled, attackers can send crafted smartcard cache...

CVE-2026-67299

FreeRDP before 3.29.0 is affected by a client-side heap use-after-free in the async update path when WINDOW_ICON_ORDER is processed. In update_message_WindowIcon(), a shallow CopyMemory overwrites a newly allocated lParam->iconInfo with a parser-owned windowIcon->iconInfo pointer; after the...

EUVD-2026-51831

FreeRDP before 3.29.0 contains an out-of-bounds heap read vulnerability in the UVC H.264 extension-unit parser that fails to validate descriptor length before accessing the GUID field. A local attacker with a malicious USB video camera can trigger a heap read beyond allocated bounds during camera...

CVE-2026-67292 FreeRDP before 3.29.0 WebSocket Ping Buffer Over-disclosure

FreeRDP before 3.29.0 contains a buffer over-disclosure vulnerability in the gateway WebSocket transport libfreerdp/core/gateway/websocket.c. The client's Pong reply reuses a fixed 1024-byte response stream whose length is not sealed to the actual received Ping payload, so a malicious...

EUVD-2026-51811

FreeRDP before 3.29.0 contains a buffer over-disclosure vulnerability in the gateway WebSocket transport libfreerdp/core/gateway/websocket.c. The client's Pong reply reuses a fixed 1024-byte response stream whose length is not sealed to the actual received Ping payload, so a malicious...

EUVD-2026-51824

FreeRDP versions 3.28.0 and earlier contain a heap buffer overflow in the server-side RAIL channel handler railserverhandlemessages in channels/rail/server/railmain.c. When processing a RAIL PDU header, the code subtracts RAILPDUHEADERLENGTH from the peer-controlled orderLength field without firs...

CVE-2026-67291 FreeRDP before 3.29.0 Heap Out-of-Bounds Read via GLYPH_FRAGMENT_ADD

FreeRDP before 3.29.0 affected versions = 3.28.0 contains a heap out-of-bounds read in updateprocessglyphfragments/glyphcachefragmentput in libfreerdp/cache/glyph.c. When handling a GLYPHFRAGMENTADD update, the code reads a one-byte server-controlled declared fragment size but does not verify it...

CVE-2026-67295 FreeRDP before 3.29.0 Path Traversal via drive redirection

FreeRDP before 3.29.0 fails to properly validate server-supplied RDPDR paths in drive redirection, allowing attackers to access prefix-sibling paths outside the configured shared root. A malicious RDP server can read, write, delete, and enumerate files in sibling directories by sending non-rooted...

CVE-2026-67302

FreeRDP before 3.29.0 affected versions = 3.28.0 contains a divide-by-zero vulnerability in the rdpecam camera redirection client. ecamdevprocessstartstreamsrequest parses a server-controlled CAMMEDIATYPEDESCRIPTION from a StartStreamsRequest PDU but validates only Format and Flags, not...

CVE-2026-67295 FreeRDP before 3.29.0 Path Traversal via drive redirection

FreeRDP before 3.29.0 fails to properly validate server-supplied RDPDR paths in drive redirection, allowing attackers to access prefix-sibling paths outside the configured shared root. A malicious RDP server can read, write, delete, and enumerate files in sibling directories by sending non-rooted...

CVE-2026-66401

CVE-2026-66401 affects FreeRDP prior to 3.29.0. The vulnerability is an out-of-bounds heap read in the UVC H.264 extension-unit parser that does not validate descriptor length before accessing the GUID field. A local attacker using a malicious USB video camera can trigger a heap read beyond alloc...

CVE-2026-67292

FreeRDP before 3.29.0 contains a buffer over-disclosure vulnerability in the gateway WebSocket transport libfreerdp/core/gateway/websocket.c. The client's Pong reply reuses a fixed 1024-byte response stream whose length is not sealed to the actual received Ping payload, so a malicious...

CVE-2026-67300

FreeRDP before 3.29.0 contains client-side heap use-after-free vulnerabilities in the async update message proxy for RAIL WINDOWSTATEORDER and NOTIFYICONSTATEORDER when AsyncUpdate is enabled. When a malicious or compromised RDP server sends crafted update orders, the message proxy shallow-copies...

CVE-2026-67306

FreeRDP versions 3.28.0 and earlier contain an out-of-bounds read vulnerability in the RDP6 planar RLE bitmap decoder functions planardecompressplanerle and planardecompressplanerleonly in libfreerdp/codec/planar.c. Only the 1-byte control byte is bounds-checked; the subsequent 0–15...

CVE-2026-67291 FreeRDP before 3.29.0 Heap Out-of-Bounds Read via GLYPH_FRAGMENT_ADD

FreeRDP before 3.29.0 affected versions = 3.28.0 contains a heap out-of-bounds read in updateprocessglyphfragments/glyphcachefragmentput in libfreerdp/cache/glyph.c. When handling a GLYPHFRAGMENTADD update, the code reads a one-byte server-controlled declared fragment size but does not verify it...

CVE-2026-67300 FreeRDP before 3.29.0 Use-After-Free via async message proxy

FreeRDP before 3.29.0 contains client-side heap use-after-free vulnerabilities in the async update message proxy for RAIL WINDOWSTATEORDER and NOTIFYICONSTATEORDER when AsyncUpdate is enabled. When a malicious or compromised RDP server sends crafted update orders, the message proxy shallow-copies...

CVE-2026-67288 FreeRDP before 3.29.0 Denial of Service via smartcard cache

FreeRDP before 3.29.0 contains a null pointer dereference vulnerability in smartcard cache request decoders that accept NULL NDR pointers for LookupName in SCARDIOCTLREADCACHEA and SCARDIOCTLWRITECACHEA operations. When smartcard emulation is enabled, attackers can send crafted smartcard cache...

EUVD-2026-51823

FreeRDP before 3.29.0 affected versions = 3.28.0 contains a heap out-of-bounds read in updateprocessglyphfragments/glyphcachefragmentput in libfreerdp/cache/glyph.c. When handling a GLYPHFRAGMENTADD update, the code reads a one-byte server-controlled declared fragment size but does not verify it...

EUVD-2026-51835

FreeRDP versions 3.28.0 and earlier contain an out-of-bounds read vulnerability in the RDP6 planar RLE bitmap decoder functions planardecompressplanerle and planardecompressplanerleonly in libfreerdp/codec/planar.c. Only the 1-byte control byte is bounds-checked; the subsequent 0–15...

CVE-2026-67299 FreeRDP before 3.29.0 Use-After-Free via WindowIcon async message

FreeRDP before 3.29.0 contains a client-side heap use-after-free in the async update message proxy for WINDOWICONORDER when AsyncUpdate is enabled e.g. xfreerdp /async-update. In updatemessageWindowIcon a shallow CopyMemory overwrites a freshly allocated lParam-iconInfo with the parser-owned...