CVE-2026-40962

EUVD-2026-23153
FFmpeg before 8.1 has an integer overflow and resultant out-of-bounds write via CENC (Common Encryption) subsample data to libavformat/mov.c.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.9 MEDIUM
LOCAL
HIGH
NONE
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 3%
Affected Products (NVD)
VendorProductVersion
ffmpegffmpeg
𝑥
< 8.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
ffmpeg
bookworm
7:5.1.9-0+deb12u1
fixed
bookworm (security)
7:5.1.9-0+deb12u1
fixed
bullseye
postponed
bullseye (security)
vulnerable
forky
7:8.1.2-2
fixed
sid
7:8.1.2-2
fixed
trixie
7:7.1.5-0+deb13u1
fixed
trixie (security)
7:7.1.5-0+deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
ffmpeg
bionic
not-affected
focal
Fixed 7:4.2.7-0ubuntu0.1+esm13
released
jammy
Fixed 7:4.4.2-0ubuntu0.22.04.1+esm12
released
noble
Fixed 7:6.1.1-3ubuntu5+esm10
released
questing
ignored
resolute
Fixed 7:8.0.1-3ubuntu2+esm1
released
xenial
ignored
libav
jammy
dne
noble
dne
questing
dne
resolute
dne
trusty
needs-triage
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
libavcodec58_134
suse enterprise desktop 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise sap 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise server 15 SP4
4.4.7-150400.3.67.1
fixed
suse enterprise server 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise workstation 15 SP7
4.4.7-150600.13.47.1
fixed
libavformat58_76
suse enterprise desktop 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise sap 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise server 15 SP4
4.4.7-150400.3.67.1
fixed
suse enterprise server 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise workstation 15 SP7
4.4.7-150600.13.47.1
fixed
libavutil56_70
suse enterprise desktop 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise sap 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise server 15 SP4
4.4.7-150400.3.67.1
fixed
suse enterprise server 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise workstation 15 SP7
4.4.7-150600.13.47.1
fixed
libpostproc55_9
suse enterprise server 15 SP4
4.4.7-150400.3.67.1
fixed
libswresample3_9
suse enterprise desktop 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise sap 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise server 15 SP4
4.4.7-150400.3.67.1
fixed
suse enterprise server 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise workstation 15 SP7
4.4.7-150600.13.47.1
fixed
libswscale5_9
suse enterprise desktop 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise sap 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise server 15 SP4
4.4.7-150400.3.67.1
fixed
suse enterprise server 15 SP7
4.4.7-150600.13.47.1
fixed
suse enterprise workstation 15 SP7
4.4.7-150600.13.47.1
fixed
Common Weakness Enumeration
References
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22348