FFmpeg through 9.0.2 contains an integer overflow vulnerability in the VVC decoder alloc_frame() function in libavcodec/vvc/refs.c that undersizes the reference picture list allocation on 32-bit builds. Attackers can supply a crafted VVC (H.266) file with a very large number of NAL units per access unit to trigger heap out-of-bounds writes and corrupt memory.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 09 Nov 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | FFmpeg through 9.0.2 contains an integer overflow vulnerability in the VVC decoder alloc_frame() function in libavcodec/vvc/refs.c that undersizes the reference picture list allocation on 32-bit builds. Attackers can supply a crafted VVC (H.266) file with a very large number of NAL units per access unit to trigger heap out-of-bounds writes and corrupt memory. | |
| Title | FFmpeg through 9.0.2 VVC Decoder Heap Out-of-Bounds Write via refs.c | |
| First Time appeared |
Ffmpeg
Ffmpeg ffmpeg |
|
| Weaknesses | CWE-190 | |
| CPEs | cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Ffmpeg
Ffmpeg ffmpeg |
|
| References |
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|
| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-09T19:11:56.865Z
Reserved: 2026-11-09T18:15:30.370Z
Link: CVE-2026-125251
No data.
Status : Received
Published: 2026-11-09T19:17:04.030
Modified: 2026-11-09T19:17:04.030
Link: CVE-2026-125251
No data.
OpenCVE Enrichment
Updated: 2026-11-09T21:30:11Z
Weaknesses