{
  "id": "cve-2021-45046",
  "cveID": "CVE-2021-45046",
  "vendor": "Apache",
  "product": "Log4j2",
  "vulnerabilityName": "Apache Log4j2 Deserialization of Untrusted Data Vulnerability",
  "shortDescription": "Apache Log4j2 contains a deserialization of untrusted data vulnerability due to the incomplete fix of CVE-2021-44228, where the Thread Context Lookup Pattern is vulnerable to remote code execution in certain non-default configurations.",
  "requiredAction": "Apply updates per vendor instructions.",
  "dateAdded": "2023-05-01",
  "dueDate": "2023-05-22",
  "knownRansomware": true,
  "cwes": [
    "CWE-917"
  ],
  "notes": "https://logging.apache.org/log4j/2.x/security.html; https://nvd.nist.gov/vuln/detail/CVE-2021-45046",
  "sources": [
    {
      "label": "NVD",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45046"
    },
    {
      "label": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
    },
    {
      "label": "logging.apache.org",
      "url": "https://logging.apache.org/log4j/2.x/security.html"
    },
    {
      "label": "nvd.nist.gov",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45046"
    }
  ],
  "cvss": {
    "score": 9,
    "severity": "CRITICAL",
    "version": "3.1",
    "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"
  },
  "epss": {
    "score": 0.99977,
    "percentile": 0.99979
  },
  "timeline": [
    {
      "date": "2023-05-01",
      "event": "Added to the CISA KEV catalog"
    },
    {
      "date": "2023-05-22",
      "event": "CISA remediation due date (BOD 22-01)"
    }
  ],
  "status": "past due"
}