CVE-2021-22204
Published 2021-04-23 · Updated 2026-06-17 · Source cve@gitlab.com
Summary
CVE-2021-22204 is a medium-severity (CVSS 6.8) vulnerability in Perl Exiftool. CISA added it to the Known Exploited Vulnerabilities catalog on November 17, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by December 1, 2021. CISA does not currently list it as used in ransomware campaigns.
All 1 known-exploited Perl vulnerabilities →Description
Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malicious image
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
CISA Known-Exploited Vulnerability
Product: Perl — Exiftool
Name: ExifTool Remote Code Execution Vulnerability
Date added: 2021-11-17 · Due: 2021-12-01
Required action: Apply updates per vendor instructions.
References
- http://packetstormsecurity.com/files/162558/ExifTool-DjVu-ANT-Perl-Injection.html
- http://packetstormsecurity.com/files/164768/GitLab-Unauthenticated-Remote-ExifTool-Command-Injection.html
- http://packetstormsecurity.com/files/164994/GitLab-13.10.2-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/167038/ExifTool-12.23-Arbitrary-Code-Execution.html
- http://www.openwall.com/lists/oss-security/2021/05/09/1
- http://www.openwall.com/lists/oss-security/2021/05/10/5
- https://github.com/exiftool/exiftool/commit/cf0f4e7dcd024ca99615bfd1102a841a25dde031#diff-fa0d652d10dbcd246e6b1df16c1e992931d3bb717a7e36157596b76bdadb3800
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22204.json

