Bug 2458945 - CVE-2026-40962 ffmpeg: FFmpeg: Integer overflow and out-of-bounds write via CENC subsample data [epel-all]
Summary: CVE-2026-40962 ffmpeg: FFmpeg: Integer overflow and out-of-bounds write via C...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: ffmpeg
Version: epel10
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Multimedia SIG
QA Contact:
URL:
Whiteboard: {"flaws": ["a2a860f5-d40d-47fa-80bf-e...
Depends On:
Blocks: CVE-2026-40962
TreeView+ depends on / blocked
 
Reported: 2026-04-16 14:19 UTC by Sandipan Roy
Modified: 2026-06-02 00:52 UTC (History)
5 users (show)

Fixed In Version: ffmpeg-5.1.9-1.el9 ffmpeg-7.1.4-1.el10_3
Clone Of:
Environment:
Last Closed: 2026-06-02 00:27:51 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Sandipan Roy 2026-04-16 14:19:21 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Comment 1 Dominik 'Rathann' Mierzejewski 2026-05-21 20:31:24 UTC 
This is fixed in 7.1.4: https://github.com/FFmpeg/FFmpeg/commit/78c944bdb170d8dcece166115d92b45379b040f4
and in 5.1.9: https://github.com/FFmpeg/FFmpeg/commit/b07fdedf940ded686ffe4e9fb221170a11ff0478
Comment 2 Fedora Update System 2026-05-22 07:55:57 UTC 
FEDORA-EPEL-2026-7e25a1d2ec (ffmpeg-5.1.9-1.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-7e25a1d2ec
Comment 3 Fedora Update System 2026-05-22 08:03:05 UTC 
FEDORA-EPEL-2026-8794c31f20 (ffmpeg-7.1.4-1.el10_3) has been submitted as an update to Fedora EPEL 10.3.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-8794c31f20
Comment 4 Fedora Update System 2026-05-23 16:08:11 UTC 
FEDORA-EPEL-2026-7e25a1d2ec has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-7e25a1d2ec

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 5 Fedora Update System 2026-05-23 16:28:21 UTC 
FEDORA-EPEL-2026-8794c31f20 has been pushed to the Fedora EPEL 10.3 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-8794c31f20

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 6 Fedora Update System 2026-06-02 00:27:51 UTC 
FEDORA-EPEL-2026-7e25a1d2ec (ffmpeg-5.1.9-1.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 7 Fedora Update System 2026-06-02 00:52:02 UTC 
FEDORA-EPEL-2026-8794c31f20 (ffmpeg-7.1.4-1.el10_3) has been pushed to the Fedora EPEL 10.3 stable repository.
If problem still persists, please make note of it in this bug report.
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