MEDIUMCVSS v3.1 5.5Vulnerability
CVE-2026-120247
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.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-11-01T04:23:23.117307+00:00
- Cvss score
- 5.5
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-11-01T04:27:23+00:00
- Score
- 5.5
- Last source
- NVD
- Cvss version
- 3.1
- Cve id
- CVE-2026-120247
- Cvss vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- First seen by Signal
- 2026-11-01T04:27:23+00:00
- Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- Published at
- 2026-11-01T01:17:18.323
- Last modified
- 2026-11-01T01:17:18.323
Related Entities (1)
HAS_WEAKNESS (1)
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