CVE-2026-40962

State: Published
Severity: 4.9 Medium
Published: Apr 16, 2026
Updated: Apr 16, 2026
Reserved: Apr 16, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	4.9 Medium	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L	mitre

Weaknesses

CWE-190 Integer Overflow or Wraparound

Affected Products

Product	Versions
FFmpegFFmpeg	4.1 to before 8.1Affected

References

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22348

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.