CVE-2026-125188

Description

FFmpeg through 9.0.2 contains a heap out-of-bounds read vulnerability in libavcodec/proresenc_anatoliy.c that occurs when the prores_aw encoder processes interlaced, odd-height frames. Attackers can supply odd-height video that causes subimage_with_fill_template() to fill padding rows from memory before the fill_y buffer, leaking heap contents into the encoded output.

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/24490 ↗
• https://github.com/FFmpeg/FFmpeg/commit/d74f5e0559ba09d942c47687856349b03c1115dd ↗
• https://github.com/FFmpeg/FFmpeg/commit/ad2287d6d2511af66222e8f7e40d546bc8d461ec ↗
• https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/proresenc_anatoliy.c#L499 ↗
• https://github.com/FFmpeg/FFmpeg ↗
• https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-prores-prores-aw-heap-out-of-bounds-read-in-interlaced-encoding ↗