{
  "product": "Microsoft Exchange Server 2016 Cumulative Update 19",
  "url": "https://patchblox.com/security/product/microsoft/microsoft-exchange-server-2016-cumulative-update-19",
  "summary": "Patch Radar has 4 security fixes for Microsoft Exchange Server 2016 Cumulative Update 19, closing 19 CVEs, 8 of which are being exploited. The newest security fix is KB5003435, released May 11, 2021. This product is no longer supported.",
  "platform": "microsoft",
  "vendor": "Microsoft",
  "supported": false,
  "fixCount": 4,
  "cveCount": 19,
  "exploitedCveCount": 8,
  "unfixedCveCount": 0,
  "fixes": [
    {
      "fix": "KB5003435",
      "url": "https://patchblox.com/security/fix/microsoft/kb5003435",
      "released": "2021-05-11T12:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 4,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5001779",
      "url": "https://patchblox.com/security/fix/microsoft/kb5001779",
      "released": "2021-04-13T12:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 7,
      "exploitedCveCount": 3
    },
    {
      "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
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-12T13:55:20Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}