MEDIUMCVSS v3.1 6.1Vulnerability

CVE-2026-125261

FFmpeg through 9.0.2 contains an out-of-bounds read vulnerability in the SGI encoder's encode_frame() in libavcodec/sgienc.c, where unsigned size variables mis-handle negative linesize frames. Attackers can supply a video whose display matrix triggers autorotate vflip, so transcoding to SGI images reads pixel data far outside the frame and crashes the process.

Properties

Severity
MEDIUM
Nvd fetched at
2026-11-10T23:33:48.924589+00:00
Epss score
0.00129
Cvss severity
MEDIUM
Cvss score
6.1
Retrieved at
2026-11-10T23:35:17+00:00
Last source
FIRST EPSS
Score
6.1
Cvss version
3.1
Cve id
CVE-2026-125261
Cvss vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
First seen by Signal
2026-11-09T23:18:15+00:00
Name
CVE-2026-125261
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Published at
2026-11-09T20:18:12.513
Last modified
2026-11-10T21:46:30.310
Epss percentile
0.02577

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]Out-of-bounds Read

Related research

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CVE-2026-125261 (CVSS v3.1 6.1) — Ninja Signal Threat Intelligence | Ninja Signal