{
    "id": "CVE-2021-22204",
    "published": "2021-04-23 18:15:08",
    "last_modified": "2026-06-17 03:36:47",
    "cvss_score": "6.8",
    "cvss_severity": "MEDIUM",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
    "cwe": "CWE-94",
    "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",
    "epss_score": "0.99981",
    "epss_percentile": "0.99981",
    "kev": 1,
    "kev_due": "2021-12-01",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:27:20",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2021-12-01."
    },
    "products": [
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "exiftool_project",
            "product": "exiftool"
        },
        {
            "vendor": "fedoraproject",
            "product": "fedora"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2021-22204",
        "date_added": "2021-11-17",
        "due_date": "2021-12-01",
        "vendor": "Perl",
        "product": "Exiftool",
        "name": "ExifTool Remote Code Execution Vulnerability",
        "ransomware": 0
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "50911",
            "title": "ExifTool 12.23 - Arbitrary Code Execution",
            "date": "2022-05-11",
            "url": "https://www.exploit-db.com/exploits/50911"
        }
    ],
    "refs_list": [
        "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",
        "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/"
    ]
}