{
  "cveId": "CVE-2021-45046",
  "url": "https://patchblox.com/security/cve/CVE-2021-45046",
  "summary": "CVE-2021-45046 is fixed in 2 products on 1 platform, first by liblog4j2-java 2.16.0-0.20.04.1, released December 14, 2021. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on May 1, 2023, with known ransomware use. Patch Radar priority: Patch now.",
  "title": "apache-log4j2: apache-log4j2 - security update",
  "description": "apache-log4j2 - security update",
  "published": "2021-12-14T08:30:00Z",
  "severity": "critical",
  "cvss": 9,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
  "epss": 0.99977,
  "epssPercentile": 0.99979,
  "priority": "Patch now",
  "priorityTier": 1,
  "exploited": true,
  "vendorExploited": false,
  "disclosed": false,
  "kev": {
    "added": "2023-05-01T00:00:00Z",
    "due": "2023-05-22T00:00:00Z",
    "ransomware": true,
    "requiredAction": "Apply updates per vendor instructions."
  },
  "fixes": [
    {
      "platform": "linux",
      "product": "apache-log4j2",
      "release": "Debian 11.6 (bullseye)",
      "fixedVersion": "2.16.0-1~deb11u1",
      "fix": "DSA-5022-1",
      "url": "https://patchblox.com/security/fix/linux/dsa-5022-1",
      "released": "2021-12-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "apache-log4j2",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2.16.0-1",
      "fix": "DEBIAN-CVE-2021-45046",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-45046",
      "released": "2021-12-14T19:15:07Z"
    },
    {
      "platform": "linux",
      "product": "apache-log4j2",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2.16.0-1",
      "fix": "DEBIAN-CVE-2021-45046",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-45046",
      "released": "2021-12-14T19:15:07Z"
    },
    {
      "platform": "linux",
      "product": "apache-log4j2",
      "release": "Debian 14",
      "fixedVersion": "2.16.0-1",
      "fix": "DEBIAN-CVE-2021-45046",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-45046",
      "released": "2021-12-14T19:15:07Z"
    },
    {
      "platform": "linux",
      "product": "liblog4j2-java",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.16.0-0.20.04.1",
      "fix": "liblog4j2-java 2.16.0-0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-liblog4j2-java-2.16.0-0.20.04.1",
      "released": "2021-12-14T08:30:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}