CVE-2026-125236
LOW
NVD
CVSS Score
3.3
Severity
LOW
Published
Nov 09, 2026
Vendor
unknown
Description
FFmpeg through 9.0.2 contains a memory leak vulnerability in alloc_frame() in libavcodec/vvc/refs.c that leaks SPS and PPS references when frame buffer allocation fails. Attackers can supply a crafted VVC (H.266) stream that repeatedly replaces parameter sets, steadily growing memory use and causing denial of service.
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25088
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/vvc/refs.c#L133
- https://github.com/FFmpeg/FFmpeg/commit/a13e27336a61a3452e1ab8b4bb132c4174c67498
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-vvc-decoder-memory-leak-via-alloc-frame