CVE-2021-22204
MEDIUMCISA KEVEPSS 100th pctlDescription
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 v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Exploit Intelligence
Very high risk: more likely to be exploited than 100% of all known CVEs.
ExifTool Remote Code Execution Vulnerability
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
Apply updates per vendor instructions.
Remediation due: 2021-12-01
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
- https://hackerone.com/reports/1154542
- https://lists.debian.org/debian-lts-announce/2021/05/msg00018.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDKDLJLBTBBR66OOPXSXCG2PQRM5KCZL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6UOBPU3LSHAPRRJNISNVXZ5DSUIALLV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U4RF6PJCJ6NQOVJJJF6HN6BORUQVIXY6/
- https://www.debian.org/security/2021/dsa-4910
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22204
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.