CVE-2026-67305 FreeRDP Windows Client before 3.29.0 Heap Buffer Overflow via Cliprdr

FreeRDP Windows client before 3.29.0 contains a heap buffer overflow vulnerability in the clipboard virtual channel when processing CLIPRDRFILECONTENTSRESPONSE PDUs without validating the server-provided size against the destination buffer. A malicious RDP server can send a response with a data...

CVE-2026-67305 FreeRDP Windows Client before 3.29.0 Heap Buffer Overflow via Cliprdr

FreeRDP Windows client before 3.29.0 contains a heap buffer overflow vulnerability in the clipboard virtual channel when processing CLIPRDRFILECONTENTSRESPONSE PDUs without validating the server-provided size against the destination buffer. A malicious RDP server can send a response with a data...

CVE-2026-67293

FreeRDP prior to 3.29.0 (affected versions ≤ 3.28.0) contains an improper certificate hostname validation vulnerability. The TLS hostname matcher (tls_match_hostname() in libfreerdp/crypto/tls.c) treats a wildcard pattern such as *.example.com as matching any hostname ending in .example.com, allo...

CVE-2026-67301 FreeRDP before 3.29.0 Out-of-bounds Read via Polygon async message-proxy

FreeRDP before 3.29.0 contains out-of-bounds read vulnerabilities in the async update message proxy for the PolygonSC and PolygonCB primary drawing orders. When AsyncUpdate is enabled e.g., xfreerdp /async-update, updatemessagePolygonSC and updatemessagePolygonCB allocate a fresh points array but...

CVE-2026-67297 FreeRDP before 3.29.0 Resource Exhaustion via chunked HTTP response

FreeRDP before 3.29.0 fails to enforce the RESPONSESIZELIMIT when processing Transfer-Encoding: chunked HTTP responses in httpresponserecvbody. Attackers controlling a malicious RD Gateway endpoint can send oversized chunked response bodies to exhaust client memory resources without triggering th...

CVE-2026-67290 FreeRDP before 3.29.0 Heap Out-of-Bounds Read via TSMF

FreeRDP before 3.29.0 contains a heap out-of-bounds read vulnerability in the TSMF FFmpeg decoder when parsing AVC1 MPEG2VIDEOINFO media types with insufficient ExtraData. Attackers can send malformed media format data from a server to trigger a crash by reading fixed offsets without validating...

CVE-2026-67297 FreeRDP before 3.29.0 Resource Exhaustion via chunked HTTP response

FreeRDP before 3.29.0 fails to enforce the RESPONSESIZELIMIT when processing Transfer-Encoding: chunked HTTP responses in httpresponserecvbody. Attackers controlling a malicious RD Gateway endpoint can send oversized chunked response bodies to exhaust client memory resources without triggering th...

CVE-2026-67293 FreeRDP before 3.29.0 Improper Certificate Hostname Validation

FreeRDP before 3.29.0 affected versions = 3.28.0 contains an improper certificate hostname validation vulnerability. The TLS hostname matcher tlsmatchhostname in libfreerdp/crypto/tls.c treats a wildcard pattern such as .example.com as matching any hostname ending in .example.com, so it incorrect...

CVE-2026-67293 FreeRDP before 3.29.0 Improper Certificate Hostname Validation

FreeRDP before 3.29.0 affected versions = 3.28.0 contains an improper certificate hostname validation vulnerability. The TLS hostname matcher tlsmatchhostname in libfreerdp/crypto/tls.c treats a wildcard pattern such as .example.com as matching any hostname ending in .example.com, so it incorrect...

CVE-2026-67305

FreeRDP Windows client before 3.29.0 contains a heap buffer overflow vulnerability in the clipboard virtual channel when processing CLIPRDRFILECONTENTSRESPONSE PDUs without validating the server-provided size against the destination buffer. A malicious RDP server can send a response with a data...

CVE-2026-67290

FreeRDP before 3.29.0 is affected by a heap out-of-bounds read in the TSMF FFmpeg decoder when parsing AVC1 MPEG2VIDEOINFO media types with insufficient ExtraData. The vulnerability allows a remote attacker to crash a server by sending malformed media format data, exploiting fixed offsets without...

CVE-2026-67290

FreeRDP before 3.29.0 contains a heap out-of-bounds read vulnerability in the TSMF FFmpeg decoder when parsing AVC1 MPEG2VIDEOINFO media types with insufficient ExtraData. Attackers can send malformed media format data from a server to trigger a crash by reading fixed offsets without validating...

CVE-2026-67301

FreeRDP before 3.29.0 contains out-of-bounds read vulnerabilities in the async update message proxy for the PolygonSC and PolygonCB primary drawing orders. When AsyncUpdate is enabled e.g., xfreerdp /async-update, updatemessagePolygonSC and updatemessagePolygonCB allocate a fresh points array but...

CVE-2026-67305

FreeRDP Windows client before 3.29.0 contains a heap buffer overflow vulnerability in the clipboard virtual channel when processing CLIPRDRFILECONTENTSRESPONSE PDUs without validating the server-provided size against the destination buffer. A malicious RDP server can send a response with a data...

CVE-2026-67293

FreeRDP before 3.29.0 affected versions = 3.28.0 contains an improper certificate hostname validation vulnerability. The TLS hostname matcher tlsmatchhostname in libfreerdp/crypto/tls.c treats a wildcard pattern such as .example.com as matching any hostname ending in .example.com, so it incorrect...

EUVD-2026-51860

FreeRDP before 3.29.0 affected versions = 3.28.0 contains an improper certificate hostname validation vulnerability. The TLS hostname matcher tlsmatchhostname in libfreerdp/crypto/tls.c treats a wildcard pattern such as .example.com as matching any hostname ending in .example.com, so it incorrect...

CVE-2026-67293

FreeRDP before 3.29.0 affected versions = 3.28.0 contains an improper certificate hostname validation vulnerability. The TLS hostname matcher tlsmatchhostname in libfreerdp/crypto/tls.c treats a wildcard pattern such as .example.com as matching any hostname ending in .example.com, so it incorrect...

EUVD-2026-51865

FreeRDP before 3.29.0 contains a heap out-of-bounds read vulnerability in the TSMF FFmpeg decoder when parsing AVC1 MPEG2VIDEOINFO media types with insufficient ExtraData. Attackers can send malformed media format data from a server to trigger a crash by reading fixed offsets without validating...

CVE-2026-67305

FreeRDP Windows client (before 3.29.0) has a heap buffer overflow in the clipboard virtual channel (CLIPRDR_FILE_CONTENTS_RESPONSE PDUs) due to lack of validation of the server-provided size against the destination buffer. A malicious RDP server could send a payload larger than requested, causing...

PT-2026-67281

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.29.0 Description An out-of-bounds read exists in the async update message proxy for the PolygonSC and PolygonCB primary drawing orders. When the AsyncUpdate feature is enabled, the functions update message PolygonSC...