{
  "id": "CVE-2021-22204",
  "url": "https://spydr.io/cve/CVE-2021-22204",
  "published": "2021-04-23T18:15:08.127Z",
  "modified": "2026-06-17T03:36:47.890Z",
  "score": 7.8,
  "severity": "high",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.99981,
  "epss_percentile": 0.99981,
  "exploited": true,
  "kev": {
    "added": "2021-11-17",
    "due": "2021-12-01",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Unknown",
    "name": "ExifTool Remote Code Execution Vulnerability",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-22204"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "ExifTool"
  ],
  "products": [
    "ExifTool"
  ],
  "cwes": [
    "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",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 7.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/162558/ExifTool-DjVu-ANT-Perl-Injection.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "http://packetstormsecurity.com/files/164768/GitLab-Unauthenticated-Remote-ExifTool-Command-Injection.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "http://packetstormsecurity.com/files/164994/GitLab-13.10.2-Remote-Code-Execution.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "http://packetstormsecurity.com/files/167038/ExifTool-12.23-Arbitrary-Code-Execution.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2021/05/09/1",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2021/05/10/5",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/exiftool/exiftool/commit/cf0f4e7dcd024ca99615bfd1102a841a25dde031#diff-fa0d652d10dbcd246e6b1df16c1e992931d3bb717a7e36157596b76bdadb3800",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22204.json",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://hackerone.com/reports/1154542",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00018.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDKDLJLBTBBR66OOPXSXCG2PQRM5KCZL/",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6UOBPU3LSHAPRRJNISNVXZ5DSUIALLV/",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U4RF6PJCJ6NQOVJJJF6HN6BORUQVIXY6/",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://www.debian.org/security/2021/dsa-4910",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22204",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22204",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}