{
  "cveId": "CVE-2020-9488",
  "url": "https://patchblox.com/security/cve/CVE-2020-9488",
  "summary": "CVE-2020-9488 is fixed in liblog4j2-java on 1 platform by liblog4j2-java 2.16.0-0.20.04.1 (version 2.16.0-0.20.04.1), released December 14, 2021. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "liblog4j2-java: Improper validation of certificate with host mismatch in Apache Log4j SMTP appender",
  "description": "Improper validation of certificate with host mismatch in Apache Log4j SMTP appender. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender. Fixed in Apache Log4j 2.12.3 and 2.13.1",
  "published": "2020-04-27T09:15:00Z",
  "severity": "Medium",
  "epss": 0.08216,
  "epssPercentile": 0.94917,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "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": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}