CVE-2026-125242
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/vdpau.c that allows attackers to exhaust heap memory by aborting pictures before end_frame. Attackers can supply crafted H.264 streams with malformed NAL units that repeatedly abandon pictures, leaking the bitstream_buffers table continuously and causing denial of service.
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25231
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/vdpau.c#L378
- https://github.com/FFmpeg/FFmpeg/commit/2c6cd8098844f2367f8ba0a3a483e405c8f76449
- https://github.com/FFmpeg/FFmpeg/commit/eac2bedcf6245552b39eed32b334851bc6a1b8fa