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Fencer Vulns
medium 4.3

CVE-2022-3964 json

ffmpeg QuickTime RPZA Video Encoder rpzaenc.c out-of-bounds

published 2022-11-13 3 y ago modified 2026-07-23 3 mo ago also EUVD-2022-43296 , JLSEC-2025-120

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.8%
EPSS 3.8% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

A vulnerability classified as problematic has been found in ffmpeg. This affects an unknown part of the file libavcodec/rpzaenc.c of the component QuickTime RPZA Video Encoder. The manipulation of the argument y_size leads to out-of-bounds read. It is possible to initiate the attack remotely. The name of the patch is 92f9b28ed84a77138105475beba16c146bdaf984. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-213543.

Patch / fix

  • julia FFMPEG_jll 4.4.4+0
  • ffmpeg ffmpeg 4.4.4, 5.0.3, 5.1.3
  • ffmpeg Debian 14, Debian 13, Debian 12 7:5.1.3-1

debian advisories DEBIAN-CVE-2022-3964

  • ffmpeg Ubuntu Pro 22.04 LTS 7:4.4.2-0ubuntu0.22.04.1+esm1

ubuntu advisories UBUNTU-CVE-2022-3964

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ffmpeg-4 SLE Workstation Extension 15 SP4, SLE Module for Package Hub 15 SP4, SLE Module for Desktop Applications 15 SP4 +1 more 4.4-150400.3.5.1

suse advisories SUSE-SU-2022:4194-1

  • ffmpeg-5 openSUSE Tumbleweed 5.1.2-4.1
  • ffmpeg-4 openSUSE Tumbleweed 4.4.3-2.1
  • ffmpeg-7 openSUSE Tumbleweed 7.0-1.1

opensuse advisories openSUSE-SU-2024:12514-1openSUSE-SU-2024:12520-1openSUSE-SU-2024:13889-1

  • ffmpeg Alpine 3.17 5.1.2-r2

alpine advisories ALPINE-CVE-2022-3964

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-3964 updated cvss 4.3

ffmpeg: out-of-bounds read in libavcodec/rpzaenc.c

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.78% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
OSV 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Affected packages

ecosystem package affected fixed in
julia FFMPEG_jll
>=4.4.0+0, <4.4.4+0
4.4.4+0

Affected products

  • unspecified ffmpeg

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.