Low severity2.1NVD Advisory· Published Aug 1, 2026· Updated Sep 3, 2026
CVE-2026-66401
CVE-2026-66401
Description
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 stream setup, causing denial of service.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
3- github.com/FreeRDP/FreeRDP/commit/5044d5390035c6fd9a36ad885192d97d21e8a92dnvdPatch
- www.vulncheck.com/advisories/freerdp-before-out-of-bounds-read-via-uvc-h-264nvdPatchThird Party Advisory
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8jj2-67pg-j6mgnvdExploitPatchVendor Advisory
News mentions
1- Freerdp: 21 Vulnerabilities Disclosed Together, Patch Released in 3.29.0Vypr Intelligence · Aug 2, 2026