{
  "product": "Microsoft Exchange Server 2016 Cumulative Update 18",
  "url": "https://patchblox.com/security/product/microsoft/microsoft-exchange-server-2016-cumulative-update-18",
  "summary": "Patch Radar has 6 security fixes for Microsoft Exchange Server 2016 Cumulative Update 18, closing 18 CVEs, 4 of which are being exploited. The newest security fix is KB5000871, released March 10, 2021. This product is no longer supported.",
  "platform": "microsoft",
  "vendor": "Microsoft",
  "supported": false,
  "fixCount": 6,
  "cveCount": 18,
  "exploitedCveCount": 4,
  "unfixedCveCount": 0,
  "fixes": [
    {
      "fix": "KB5000871",
      "url": "https://patchblox.com/security/fix/microsoft/kb5000871",
      "released": "2021-03-10T14:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 7,
      "exploitedCveCount": 4
    },
    {
      "fix": "KB4602269",
      "url": "https://patchblox.com/security/fix/microsoft/kb4602269",
      "released": "2021-02-09T14:00:00Z",
      "fixedVersion": "",
      "priority": "Routine",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4571788",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571788",
      "released": "2021-02-09T14:00:00Z",
      "fixedVersion": "",
      "priority": "Routine",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4593465",
      "url": "https://patchblox.com/security/fix/microsoft/kb4593465",
      "released": "2020-12-08T14:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 5,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4588741",
      "url": "https://patchblox.com/security/fix/microsoft/kb4588741",
      "released": "2020-11-10T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4581424",
      "url": "https://patchblox.com/security/fix/microsoft/kb4581424",
      "released": "2020-10-13T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-12T01:51:14Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}