HIGHCVSS v3.1 7.8Vulnerability
CVE-2026-125250
FFmpeg through 9.0.2 contains a heap buffer overflow in the GIF encoder's gif_image_write_image() in libavcodec/gif.c because shrunk_buf is sized from the first frame's linesize. Attackers can supply PAL8 video whose frame linesize grows mid-stream, causing remap_frame_to_palette() to write past shrunk_buf and corrupt the heap during GIF transcoding.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-11-10T23:33:48.924589+00:00
- Epss score
- 0.00144
- Cvss severity
- HIGH
- Cvss score
- 7.8
- Retrieved at
- 2026-11-10T23:35:17+00:00
- Last source
- FIRST EPSS
- Score
- 7.8
- Cvss version
- 3.1
- Cve id
- CVE-2026-125250
- Cvss vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- First seen by Signal
- 2026-11-09T23:18:15+00:00
- Name
- CVE-2026-125250
- Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published at
- 2026-11-09T19:17:03.883
- Last modified
- 2026-11-10T21:46:26.200
- Epss percentile
- 0.03724
Related Entities (1)
HAS_WEAKNESS (1)
Related research
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