No exploitation reportedFix available

CVE-2022-3964

Q: Is CVE-2022-3964 actively exploited?

Active exploitation of CVE-2022-3964 has not been confirmed. Its EPSS score was 3.8% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-3964?

CVE-2022-3964 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H.

No exploitation reported by the sources we read.

Published2022-11-13
Fixed in5.1.3 · 5.0.3 · 4.4.4
WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2022-11-1308:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-3964?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-3964?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Ffmpeg

Branch	Affected	Fixed in	Source
5.1	≥ 5.1, < 5.1.3	5.1.3	NVD
5.0	≥ 5.0, < 5.0.3	5.0.3	NVD
4.4	≥ 4.4, < 4.4.4	4.4.4	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Ffmpeg to 5.1.3 · 5.0.3 · 4.4.4

Advisories and patches

git.ffmpeg.orgPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CNACVSS 3.14.3read 2026-10-23
NVDCVSS 3.18.1read 2026-10-23
CNAweakness (CWE)CWE-119read 2026-10-23
FIRST EPSSEPSS score3.8 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Published: 2022-11-13
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-3964?

Is CVE-2022-3964 actively exploited?

Active exploitation of CVE-2022-3964 has not been confirmed. Its EPSS score was 3.8% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-3964?

CVE-2022-3964 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H.

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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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