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No exploitation reportedFix available

CVE-2018-4022

No exploitation reported by the sources we read.

  • Published2018-10-26
  • WeaknessCWE-416

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 use-after-free vulnerability exists in the way MKVToolNix MKVINFO v25.0.0 handles the MKV (matroska) file format. A specially crafted MKV file can cause arbitrary code execution in the context of the current user.

Timeline

dates in UTC
  1. 2018-10-2617:29CVE publishedNVD

Versions per branch

NVD
Mkvtoolnix mkvinfo
BranchAffectedFixed in
25.0= 25.0.0no 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

  • mkvtoolnixUbuntu:26.10all versions · no fixed version listed
  • mkvtoolnixUbuntu:26.04:LTSall versions · no fixed version listed
  • mkvtoolnixUbuntu:25.10all versions · no fixed version listed
  • mkvtoolnixUbuntu:24.04:LTSall versions · no fixed version listed
  • mkvtoolnixUbuntu:22.04:LTSall versions · no fixed version listed
  • mkvtoolnixUbuntu:20.04:LTSall versions · no fixed version listed
  • mkvtoolnixUbuntu:18.04:LTSall versions · no fixed version listed
  • mkvtoolnixUbuntu:16.04:LTSall versions · no fixed version listed

3 more package ranges on OSV.dev

Vendor advisories

  • CVE-2018-4022 Red Hat Product Security

    mkvtoolnix: MKVINFO read_one_element code execution vulnerability

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

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

Sources

  • NVDCVSS 3.17.8read 2026-10-23
  • CNACVSS 3.07.3known since 2026-10-23
  • NVDCVSS 2.06.8read 2026-10-23
  • NVDweakness (CWE)CWE-416read 2026-10-23
  • FIRST EPSSEPSS score1.5 %2026-11-08
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2018-10-26
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-jxj9-2h46-gwf3

Frequently asked questions

What is CVE-2018-4022?

A use-after-free vulnerability exists in the way MKVToolNix MKVINFO v25.0.0 handles the MKV (matroska) file format. A specially crafted MKV file can cause arbitrary code execution in the context of the current user.

Is CVE-2018-4022 actively exploited?

Active exploitation of CVE-2018-4022 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-2018-4022?

CVE-2018-4022 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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