CVE-2026-40962

Publication date 16 April 2026

Last updated 26 June 2026


Ubuntu priority

Cvss 3 Severity Score

4.9 · Medium

Score breakdown

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.

Status

Package Ubuntu Release Status
ffmpeg 26.04 LTS resolute
Fixed 7:8.0.1-3ubuntu2+esm1
25.10 questing
Vulnerable
24.04 LTS noble
Fixed 7:6.1.1-3ubuntu5+esm10
22.04 LTS jammy
Fixed 7:4.4.2-0ubuntu0.22.04.1+esm12
20.04 LTS focal
Fixed 7:4.2.7-0ubuntu0.1+esm13
18.04 LTS bionic
Not affected
16.04 LTS xenial Ignored end of ESM support, was needs-triage
libav 26.04 LTS resolute Not in release
25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
14.04 LTS trusty
Needs evaluation

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
ffmpeg

Severity score breakdown

CVSS version: CVSS v3.0

Base score 4.9 · Medium

Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

References

Related Ubuntu Security Notices (USN)

Other references


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