CVE-2026-125230

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

References

• https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25569 ↗
• https://github.com/FFmpeg/FFmpeg/commit/11052ca4b01b021a135ec89ed7e86aa96dd3bf33 ↗
• https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/bsf/pcm_rechunk.c#L49 ↗
• https://github.com/FFmpeg/FFmpeg ↗
• https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-integer-overflow-division-by-zero-via-pcm-rechunk-filter ↗