MEDIUM 4.8 NVD
CVE-2026-125179
FFmpeg through 9.0.2 contains an uninitialized memory vulnerability in the VQA video decoder in libavcodec/vqavideo.c that allows attackers to disclose heap mem
FFmpeg through 9.0.2 contains an uninitialized memory vulnerability in the VQA video decoder in libavcodec/vqavideo.c that allows attackers to disclose heap memory via a crafted VQA file. Attackers can supply a Westwood VQA file omitting or truncating the CBF0/CBFZ codebook chunk, causing vqa_decode_frame() to render frames from leftover heap bytes visible in decoded output.
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24670
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/vqavideo.c#L186
- https://github.com/FFmpeg/FFmpeg/commit/f9df3577ac40aaee06f82f05eab8249cbab3cd33
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-heap-memory-disclosure-via-vqa-v
This medium severity vulnerability with a CVSS score of 4.8 was published on 2026-11-09 via NVD.
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