CVE-2026-40962

FFmpeg before 8.1 has an integer overflow and resultant out-of-bounds write via CENC (Common Encryption) subsample data to libavformat/mov.c.

CVSS v3 4.9 MEDIUM

4.9^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.4 / Impact : 3.4

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22348	Issue Tracking Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-16 02:16

Updated : 2026-06-17 10:45

NVD link : CVE-2026-40962

Mitre link : CVE-2026-40962

CVE.ORG link : CVE-2026-40962

JSON object : View

Products Affected

ffmpeg

ffmpeg

CWE

CWE-190

Integer Overflow or Wraparound

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