FFmpeg 2.3 through 9.0.2 contains a use of uninitialized resource vulnerability in the Huffyuv decoder that allows attackers to leak heap memory into decoded pixels via short packed-BGR bitstreams. Attackers can craft a Huffyuv BGR24/BGRA video whose entropy data ends early, causing decode_slice() to add uninitialized s->temp[0] bytes into output frames, exposing heap contents.
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Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Sun, 01 Nov 2026 01:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | FFmpeg 2.3 through 9.0.2 contains a use of uninitialized resource vulnerability in the Huffyuv decoder that allows attackers to leak heap memory into decoded pixels via short packed-BGR bitstreams. Attackers can craft a Huffyuv BGR24/BGRA video whose entropy data ends early, causing decode_slice() to add uninitialized s->temp[0] bytes into output frames, exposing heap contents. | |
| Title | FFmpeg 2.3 through 9.0.2 Huffyuv Decoder Uninitialized Heap Memory Disclosure | |
| First Time appeared |
Ffmpeg
Ffmpeg ffmpeg |
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| Weaknesses | CWE-908 | |
| CPEs | cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Ffmpeg
Ffmpeg ffmpeg |
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| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-01T00:57:12.137Z
Reserved: 2026-10-31T22:05:58.945Z
Link: CVE-2026-120247
No data.
Status : Received
Published: 2026-11-01T01:17:18.323
Modified: 2026-11-01T01:17:18.323
Link: CVE-2026-120247
No data.
OpenCVE Enrichment
Updated: 2026-11-01T02:45:10Z
Weaknesses