CVE-2026-40962

Published Apr 16, 2026

Last updated a month ago

Overview

Description
FFmpeg before 8.1 has an integer overflow and resultant out-of-bounds write via CENC (Common Encryption) subsample data to libavformat/mov.c.
Source
cve@mitre.org
NVD status
Analyzed
Products
ffmpeg

Risk scores

CVSS 3.1

Type
Primary
Base score
9.8
Impact score
5.9
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
CRITICAL

Weaknesses

cve@mitre.org
CWE-190

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.