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No exploitation reportedFix available

CVE-2020-22027

No exploitation reported by the sources we read.

  • Published2021-05-27
  • WeaknessCWE-787

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 heap-based Buffer Overflow vulnerability exits in FFmpeg 4.2 in deflate16 at libavfilter/vf_neighbor.c, which might lead to memory corruption and other potential consequences.

Timeline

dates in UTC
  1. 2021-05-2719:15CVE publishedNVD

Versions per branch

NVD
Ffmpeg
BranchAffectedFixed in
4.2= 4.2no fix published
Debian debian linux
BranchAffectedFixed in
10.0= 10.0no fix published

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

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • ffmpegUbuntu:22.04:LTSall versions · fixed in 7:4.4.2-0ubuntu0.22.04.1
  • ffmpegUbuntu:20.04:LTSall versions · fixed in 7:4.2.7-0ubuntu0.1
  • ffmpegUbuntu:18.04:LTSall versions · fixed in 7:3.4.11-0ubuntu0.1
  • ffmpegSUSE:Linux Enterprise Workstation Extension 15 SP6all versions · fixed in 3.4.2-150200.11.57.1
  • ffmpegSUSE:Linux Enterprise Workstation Extension 15 SP5all versions · fixed in 3.4.2-150200.11.57.1
  • ffmpegSUSE:Linux Enterprise Module for Package Hub 15 SP6all versions · fixed in 3.4.2-150200.11.57.1
  • ffmpegSUSE:Linux Enterprise Module for Package Hub 15 SP5all versions · fixed in 3.4.2-150200.11.57.1
  • ffmpegSUSE:Linux Enterprise Module for Desktop Applications 15 SP6all versions · fixed in 3.4.2-150200.11.57.1

9 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2021-05-27
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-g87g-7w26-c3c3

Frequently asked questions

What is CVE-2020-22027?

A heap-based Buffer Overflow vulnerability exits in FFmpeg 4.2 in deflate16 at libavfilter/vf_neighbor.c, which might lead to memory corruption and other potential consequences.

Is CVE-2020-22027 actively exploited?

Active exploitation of CVE-2020-22027 has not been confirmed. Its EPSS score was 1.5% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-22027?

CVE-2020-22027 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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