PT-2026-33237 · FFmpeg · Ffmpeg

Published 2026-03-02 · Updated 2026-06-01 · CVE-2026-40962

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions FFmpeg versions prior to 8.1

Description An integer overflow exists in the CENC (Common Encryption) subsample data processing within the libavformat/mov.c component, which can lead to an out-of-bounds write.

Recommendations Update to version 8.1 or later.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

BDU:2026-05549

CVE-2026-40962

OPENSUSE-SU-2026:10767-1

OPENSUSE-SU-2026:10768-1

Affected Products

Ffmpeg

References · 17

• https://nvd.nist.gov/vuln/detail/CVE-2026-40962 · Security Note
• https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22348 · Patch
• https://ubuntu.com/security/CVE-2026-40962 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10767-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-05549 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-40962 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-40962 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-40962 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10768-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-40962 · Security Note
• https://access.redhat.com/security/cve/cve-2026-40962 · Note
• https://reddit.com/r/ClaudeAI/comments/1ttkpoy/trying_to_see_if_mythos_claims_are_verified_or_not · Reddit Post
• https://ffmpeg.org · Note
• https://suse.com/security/cve/CVE-2026-40962 · Note
• https://twitter.com/VulmonFeeds/status/2044640995699007610 · Twitter Post