{
  "fix": "KB4583460",
  "url": "https://patchblox.com/security/fix/microsoft/kb4583460",
  "summary": "KB4583460, released January 12, 2021, fixes 1 CVE in Microsoft SQL Server 2016 for x64-based Systems Service Pack 2 (GDR). None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "January 2021 security update",
  "released": "2021-01-12T14:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2021-1636, high severity",
  "supported": false,
  "cveCount": 1,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.06693,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://support.microsoft.com/help/4583460",
  "appliesTo": [
    {
      "product": "Microsoft SQL Server 2016 for x64-based Systems Service Pack 2 (GDR)",
      "productUrl": "https://patchblox.com/security/product/microsoft/microsoft-sql-server-2016-for-x64-based-systems-service-pack-2-gdr",
      "fixedVersion": "",
      "supported": false
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2021-1636",
      "url": "https://patchblox.com/security/cve/CVE-2021-1636",
      "title": "Microsoft SQL Elevation of Privilege Vulnerability",
      "component": "SQL Server",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.06693,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}