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CVE-2026-40962

nvd nist
Published: Apr 16, 2026Modified: Jun 17, 2026

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9.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 3.9 / Impact: 5.9
Source: NVD

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.

Affected (1)

Products: Ffmpeg: Ffmpeg
Ffmpeg
1 product
Ffmpeg
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Ffmpeg
Before 8.1

Related CWEs

CWE-190
Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (1)

Source: cve@mitre.org
Issue TrackingPatch

Timeline

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