CVE-2021-22204
ExifTool Remote Code Execution Vulnerability
IN CISA KEV
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
- Vendor
- Perl
- Product
- Exiftool
- CVSS 3.1
- 7.8 (high), scored by NVD (primary)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 3.1
- 6.8 (medium), scored by cve@gitlab.comCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
- CWE
- CWE-94
- Published
- 2021-04-23
- NVD modified
- 2026-06-17
- NVD status
- Analyzed
CISA KEV
- Date added
- 2021-11-17
- Due date
- 2021-12-01
- Ransomware use
- Unknown
- Required action
- Apply updates per vendor instructions.
EPSS
100% chance of exploitation in the next 30 days (percentile 99th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
References
- www.openwall.com (Mailing List, Third Party Advisory)
- www.openwall.com (Mailing List, Third Party Advisory)
- github.com (Patch)
- gitlab.com (Third Party Advisory)
- lists.debian.org (Mailing List, Third Party Advisory)
- lists.fedoraproject.org (Release Notes)
- lists.fedoraproject.org (Release Notes)
- lists.fedoraproject.org (Release Notes)
- www.debian.org (Mailing List, Third Party Advisory)
- www.openwall.com (Mailing List, Third Party Advisory)
- www.openwall.com (Mailing List, Third Party Advisory)
- github.com (Patch)
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.