CVE-2026-125224

Description

FFmpeg through 9.0.2 contains a denial of service vulnerability in libavcodec/vorbis_parser.c that re-parses invalid extradata for every packet when valid_extradata remains false. Attackers can supply crafted Ogg or Matroska Vorbis streams with large invalid extradata and many packets to exhaust CPU during demuxing or probing.

Affected Platforms

Weakness Type

CWE-400

References

• https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25694
• https://github.com/FFmpeg/FFmpeg
• https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/vorbis_parser.c#L312
• https://github.com/FFmpeg/FFmpeg/commit/90f5e61a1da2dcc0050169af8ca593530f26071b
• https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-vorbis-parser-cpu-exha…