PT-2026-67272 · Freerdp · Freerdp

CVE-2026-67292 · Published 2026-08-01 · Updated 2026-08-01

Positive Technologies (AI Summary)

CVSS v4.0

9.3

Critical

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.29.0

Description A buffer over-disclosure issue exists in the gateway WebSocket transport within the libfreerdp/core/gateway/websocket.c file. The client uses a fixed 1024-byte response stream for Pong replies without restricting the length to the actual received Ping payload. A malicious gateway or WebSocket peer can send a non-empty Ping control frame, causing the client to send an overlong Pong response that discloses memory bytes beyond the payload, including the masking key. Additionally, sending a zero-length Ping triggers an assertion that terminates the client, resulting in a denial of service.

Recommendations Update to version 3.29.0 or later.

Exploit

Fix

Weakness Enumeration

CWE-130

Related Identifiers

CVE-2026-67292

GHSA-8V6M-2CMC-CHX9

Affected Products

Freerdp

References · 6

• 🔥 https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8v6m-2cmc-chx9 · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67292.json · Exploit
• https://github.com/FreeRDP/FreeRDP/commit/f3b4347105114fe7453828736bea069999af319f · Patch
• https://osv.dev/vulnerability/CVE-2026-67292 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-67292 · Security Note
• https://vulncheck.com/advisories/freerdp-before-websocket-ping-buffer-over-disclosure · Note