CVE-2026-125244

HighCVSS 7.8/10Last modified Nov 10, 2026

Description

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
FFmpegFFmpeg>= 7.0, < 8.1.3; >= 9.0, < 9.0.2

References

Timeline

Published
Nov 9, 2026
Last modified
Nov 10, 2026
NVD status
Awaiting Analysis

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CVE-2026-125244: High severity, CVSS 7.8 | Vulnix