{"cve":"CVE-2021-22204","nvd":{"published":"2021-04-23T18:15:08.127","modified":"2026-06-17T03:36:47.890","status":"Analyzed","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-94"],"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"],"products":["debian:debian_linux","exiftool_project:exiftool","fedoraproject:fedora"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-22204","score":0.99981,"percentile":0.99981,"date":"2026-11-01"},"kev":{"cve":"CVE-2021-22204","date_added":"2021-11-17","due_date":"2021-12-01","vendor":"Perl","product":"Exiftool","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}