CVE-2026-40962

criticalpriority · track · 39EPSS 0.001 · 3 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.13% (3rd) EPSS

CVSS 9.8 · critical

Is it mine?

19 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

FFmpeg before 8.1 has an integer overflow and resultant out-of-bounds write via CENC (Common Encryption) subsample data to libavformat/mov.c.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 4.9–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.14.9mediumAV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · FSTEC (BDU) RU

v3.14.9mediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · ENISA EU

v3.14.9mediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · cve@mitre.org USexploitability 1.4 · impact 3.4

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-190USCWE-190US

affected products (19)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Open Source ffmpegall versionscert_bundDEcpe:/a:ffmpeg:ffmpeg:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Open Source Open Source ffmpeg <8.1< 8.1cert_bundDE
Open Source ffmpeg< 8.1cert_bundDE
FFMPEG FFmpeg4.1 → 8.1enisa_euvdEU
FFmpeg team FFmpeg≤ 8.1fstec_bduRU
Red Hat, Inc. Lightspeed Coreall versionsfstec_bduRU
Red Hat, Inc. Red Hat Enterprise Linux AI≤ 3fstec_bduRU
Red Hat, Inc. Red Hat OpenShift AIall versionsfstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 4.7fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.7fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 13fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 12fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 11fstec_bduRU
ffmpeg ffmpeg< 8.1nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1143ffmpeg: Mehrere SchwachstellenDeutsch2026-04-15csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in ffmpeg ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen oder um einen Denial-of-Service-Zustand zu verursachen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2026-04-16modified 2026-09-17

references (5)

External citations — patches, advisories, analysis.

scry

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