{"schema":"threatline.record/2","record":{"id":"CVE-2021-22204","aliases":[],"summary":"ExifTool Remote Code Execution Vulnerability","details":"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","categories":["Runtimes & languages"],"product":"Exiftool","vendor":"Perl","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2021-22204","source_modified_at":"2025-10-21T23:25:48.455Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"ExifTool","vendor":"ExifTool","versions":[{"status":"affected","version":">=7.44, <12.24"}],"defaultStatus":null}],"fixed_versions":[],"cvss":6.8,"severity":"Medium","kev":{"listed":true,"date_added":"2021-11-17","due_date":"2021-12-01","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.99981,"percentile":0.99982,"score_date":"2026-10-23"},"published_at":"2021-04-23T17:22:15.000Z","modified_at":"2025-10-21T23:25:48.455Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2021-22204","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:25:48.455Z"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/fileformat/exiftool_djvu_ant_perl_injection.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2021-05-24"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/gitlab_exif_rce.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2021-04-14"},{"source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/50911","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2022-05-11"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2021-22204","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Metasploit","Exploit-DB","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22204","source":"CISA KEV"},{"source":"CVE List","url":"https://github.com/exiftool/exiftool/commit/cf0f4e7dcd024ca99615bfd1102a841a25dde031#diff-fa0d652d10dbcd246e6b1df16c1e992931d3bb717a7e36157596b76bdadb3800","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://hackerone.com/reports/1154542","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22204.json","tags":["x_refsource_CONFIRM","x_transferred"]},{"source":"CVE List","url":"https://www.debian.org/security/2021/dsa-4910","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"]},{"source":"CVE List","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U4RF6PJCJ6NQOVJJJF6HN6BORUQVIXY6/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"source":"CVE List","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDKDLJLBTBBR66OOPXSXCG2PQRM5KCZL/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"source":"CVE List","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6UOBPU3LSHAPRRJNISNVXZ5DSUIALLV/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"source":"CVE List","url":"https://lists.debian.org/debian-lts-announce/2021/05/msg00018.html","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22204","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"partial","assessed_at":"2025-02-06T19:49:52.310831Z"},"exploits":[{"source":"Metasploit","kind":"Exploit module","name":"ExifTool DjVu ANT Perl injection","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/fileformat/exiftool_djvu_ant_perl_injection.rb","date":"2021-05-24","added":"2023-02-10","check":false},{"source":"Metasploit","kind":"Exploit module","name":"GitLab Unauthenticated Remote ExifTool Command Injection","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/gitlab_exif_rce.rb","date":"2021-04-14","added":"2026-04-22","check":true},{"source":"Exploit-DB","kind":"Local exploit","name":"ExifTool 12.23 - Arbitrary Code Execution","url":"https://www.exploit-db.com/exploits/50911","date":"2022-05-11","added":"2022-05-11","verified":false}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:25:48.455Z","content_hash":"44431b0ecc749b073bb3f1d9036a51af2dd2810305f4617b9516f0cca49ad0b8"}}