CVE-2026-66401
FreeRDP before 3.29.0 Out-of-Bounds Read via UVC H.264
- State
- Published
- Severity
- 2.4 Low
- Published
- Aug 1, 2026
- Updated
- Aug 3, 2026
- Reserved
- Jul 26, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.4 Low | CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 2.1 Low | CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
FreeRDPFreeRDP |
|
References
- GitHub Security Advisory (GHSA-8jj2-67pg-j6mg)vendor-advisory
- Patch Commitpatch
- VulnCheck Advisory: FreeRDP before 3.29.0 Out-of-Bounds Read via UVC H.264third-party-advisory
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