{
  "fix": "KB5091223",
  "url": "https://patchblox.com/security/fix/microsoft/kb5091223",
  "summary": "KB5091223, released May 12, 2026, fixes 1 CVE in Microsoft SQL Server 2025 for x64-based Systems (GDR). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "May 2026 security update",
  "released": "2026-05-12T07:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-40370, high severity",
  "supported": true,
  "cveCount": 1,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00555,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://support.microsoft.com/help/5091223",
  "appliesTo": [
    {
      "product": "Microsoft SQL Server 2025 for x64-based Systems (GDR)",
      "productUrl": "https://patchblox.com/security/product/microsoft/microsoft-sql-server-2025-for-x64-based-systems-gdr",
      "fixedVersion": "",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-40370",
      "url": "https://patchblox.com/security/cve/CVE-2026-40370",
      "title": "SQL Server Remote Code Execution Vulnerability",
      "component": "SQL Server",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00555,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}