CVSS 4.0
2.4 lowCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NCVE-2026-66401
Low (2.4) in freerdp freerdp. EPSS 0.2% chance of exploitation in the next 30 days.
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.
Severity
CVSS 3.1
2.1 lowCVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-31)
- CWE
- CWE-125
- Published
- Modified
- Record from
- the NVD, synced
Affected
- freerdp:freerdp
References
- https://github.com/FreeRDP/FreeRDP/commit/5044d5390035c6fd9a36ad885192d97d21e8a92d
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8jj2-67pg-j6mg
- https://www.vulncheck.com/advisories/freerdp-before-out-of-bounds-read-via-uvc-h-264
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8jj2-67pg-j6mg