{
  "fix": "KB4536988",
  "url": "https://patchblox.com/security/fix/microsoft/kb4536988",
  "summary": "KB4536988, released February 11, 2020, fixes 2 CVEs in Microsoft Exchange Server 2013 Cumulative Update 23. One of them is being exploited (CVE-2020-0688); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "February 2020 security update",
  "released": "2020-02-11T14:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2020-0688, exploited (CISA KEV, ransomware)",
  "supported": false,
  "cveCount": 2,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 1,
  "maxEpss": 0.99955,
  "vendorAdvisory": "https://support.microsoft.com/help/4536988",
  "appliesTo": [
    {
      "product": "Microsoft Exchange Server 2013 Cumulative Update 23",
      "productUrl": "https://patchblox.com/security/product/microsoft/microsoft-exchange-server-2013-cumulative-update-23",
      "fixedVersion": "",
      "supported": false
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2020-0688",
      "url": "https://patchblox.com/security/cve/CVE-2020-0688",
      "title": "Microsoft Exchange Validation Key Remote Code Execution Vulnerability",
      "component": "Microsoft Exchange Server",
      "impact": "Remote Code Execution",
      "priority": "Patch now",
      "severity": "Important",
      "epss": 0.99955,
      "kev": true,
      "ransomware": true,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-0692",
      "url": "https://patchblox.com/security/cve/CVE-2020-0692",
      "title": "Microsoft Exchange Server Elevation of Privilege Vulnerability",
      "component": "Microsoft Exchange Server",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "epss": 0.03264,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}