Vulnerability DatabaseCVE-2026-40962
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CVE-2026-40962
Published:April 16, 2026
Updated:April 23, 2026
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 Packages
ffmpeg (CONAN):
Affected version(s) >=8.0 <8.1
Fix Suggestion:
Update to version 8.1
https://github.com/FFmpeg/FFmpeg.git (GITHUB):
Affected version(s) >=n8.0 <n8.1
Fix Suggestion:
Update to version n8.1
Related Resources (1)
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22348
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CVSS v4
Base Score:
2.1
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.9
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Integer Overflow or Wraparound
CWE-190