CVE-2026-125252
MEDIUM
NVD
CVSS Score
4.7
Severity
MEDIUM
Published
Nov 09, 2026
Vendor
unknown
Description
FFmpeg through 9.0.2 contains a memory leak vulnerability in libavcodec/vaapi_decode.c that allows attackers to exhaust memory by supplying streams with slice parse errors. Attackers can craft H.264 or other VAAPI-decoded video where later slices fail to parse on every frame, continuously leaking VA parameter and slice buffers plus driver and heap memory.
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25231
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/vaapi_decode.c#L117
- https://github.com/FFmpeg/FFmpeg/commit/4221a63ce869ade862557ca64693bf77f5032971
- https://github.com/FFmpeg/FFmpeg/commit/838c660bb3cd66ba74981b453c14c79214f6ef92