CVE-2026-125247

Description

FFmpeg through 9.0.2 contains an integer overflow vulnerability in dng_decode_tiles() that allows attackers to leak uninitialized memory via crafted DNG tile dimensions. Attackers can set TileWidth or TileLength near INT_MAX so the tile loop never runs, outputting a frame exposing uninitialized or stale heap memory.

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/24999 ↗
• https://github.com/FFmpeg/FFmpeg/commit/a9c070e52fecb7fb247db829130899db07953823 ↗
• https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/tiff.c#L1007 ↗
• https://github.com/FFmpeg/FFmpeg ↗
• https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-integer-overflow-via-dng-decode-tiles-in-libavcodec-tiff-c ↗