CVE-2026-125179

LOW 3.3

FFmpeg through 9.0.2 Heap Memory Disclosure via VQA Video Decoder

CVSS Score

3.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-908
Vendor	ffmpeg
Product	ffmpeg
Published	Nov 9, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

FFmpeg / FFmpeg

0 ≤ 9.0.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

code.ffmpeg.org: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24670 github.com: https://github.com/FFmpeg/FFmpeg/commit/f9df3577ac40aaee06f82f05eab8249cbab3cd33 github.com: https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/vqavideo.c#L186 github.com: https://github.com/FFmpeg/FFmpeg vulncheck.com: https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-heap-memory-disclosure-via-vqa-video-decoder

Credits

Trithem90 🔍 Joshua Rogers (AISLE Research) Michael Niedermayer