CVE-2026-125230
MEDIUM
NVD
CVSS Score
5.5
Severity
MEDIUM
Published
Nov 09, 2026
Vendor
unknown
Description
FFmpeg through 9.0.2 contains an integer overflow vulnerability in the pcm_rechunk bitstream filter that allows attackers to trigger division by zero via a crafted channel count. Attackers can supply a file declaring a huge channel count that is remuxed into MXF, GXF or DAUD, overflowing sample_size and crashing the application.
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25569
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/bsf/pcm_rechunk.c#L49
- https://github.com/FFmpeg/FFmpeg/commit/11052ca4b01b021a135ec89ed7e86aa96dd3bf33
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-integer-overflow-division-by-zero-via-pcm-rechunk-filter