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Vulnerabilities CVE-2026-66401

CVE-2026-66401

Low
Open
TLP:CLEAR

FreeRDP before 3.29.0 Out-of-Bounds Read via UVC H.264

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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.

Details

CVSS Score
2.4
EPSS Score
0.15%

4.8th percentile

CVSS Vector
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
Confidence
90%
Published
Aug 1, 2026
Last Modified
Aug 3, 2026
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