HIGHCVSS v3.1 7.8Vulnerability

CVE-2026-125244

FFmpeg before 8.1.3 and 9.x before 9.0.2 contains an out-of-bounds write vulnerability in the VVC decoder's sh_entry_points() function in libavcodec/vvc/ps.c. Attackers can supply a crafted VVC (H.266) bitstream whose SPS/PPS tile and WPP layout produces excess entry points, overflowing entry_point_start_ctu and corrupting decoder memory.

Properties

Severity
HIGH
Nvd fetched at
2026-11-10T23:33:48.924589+00:00
Epss score
0.00128
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-2026-125244
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-2026-125244
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published at
2026-11-09T19:17:02.953
Last modified
2026-11-10T21:46:31.330
Epss percentile
0.02456

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]Out-of-bounds Write

Related research

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CVE-2026-125244 (CVSS v3.1 7.8) — Ninja Signal Threat Intelligence | Ninja Signal