CVE-2026-125099 | BDVDB-2026-402478 Detail
FFmpegFFmpeg
Description#
FFmpeg through 9.0.2 contains an uninitialized memory disclosure vulnerability in the GEM raster image decoder in libavcodec/gemdec.c that exposes uninitialized row-buffer bytes. Attackers can supply a crafted GEM .img image using SKIP or pattern opcodes to copy uninitialized heap memory into decoded frames, disclosing heap contents.
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact none, availability impact none. Attack vector: local.
Weaknesses#
- CWE-908 Use of Uninitialized Resource
References#
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25715
- https://github.com/FFmpeg/FFmpeg/commit/e578999fa3c5f7efac1ea70bb7c2a7682013c7c9
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/gemdec.c#L258
- https://github.com/FFmpeg/FFmpeg
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-uninitialized-memory-disclosure-via-gem-raster-decoder
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.