HIGHCVSS v3.1 7.8Vulnerability

CVE-2026-125262

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in libavcodec/lcevcdec.c because LCEVC output picture dimensions are not validated against the allocated frame. Attackers can embed crafted LCEVC enhancement data with differing global configurations in H.264 or HEVC streams to corrupt heap memory in decoding applications.

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-2026-125262
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-2026-125262
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published at
2026-11-09T20:18:12.657
Last modified
2026-11-10T21:46:30.333
Epss percentile
0.03724

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]Out-of-bounds Write

Related research

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CVE-2026-125262 (CVSS v3.1 7.8) — Ninja Signal Threat Intelligence | Ninja Signal