{
  "fix": "KB5074204",
  "url": "https://patchblox.com/security/fix/microsoft/kb5074204",
  "summary": "KB5074204, released December 18, 2025, fixes 1 CVE across 6 products. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "December 2025 security update",
  "released": "2025-12-18T14:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2025-54100, high severity",
  "supported": true,
  "cveCount": 1,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.02234,
  "maxCvss": 7.8,
  "vendorAdvisory": "https://support.microsoft.com/help/5074204",
  "appliesTo": [
    {
      "product": "Windows 11 Version 24H2 for ARM64-based Systems",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-11-version-24h2-for-arm64-based-systems",
      "fixedVersion": "",
      "supported": true
    },
    {
      "product": "Windows 11 Version 24H2 for x64-based Systems",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-11-version-24h2-for-x64-based-systems",
      "fixedVersion": "",
      "supported": true
    },
    {
      "product": "Windows 11 Version 25H2 for ARM64-based Systems",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-11-version-25h2-for-arm64-based-systems",
      "fixedVersion": "",
      "supported": true
    },
    {
      "product": "Windows 11 Version 25H2 for x64-based Systems",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-11-version-25h2-for-x64-based-systems",
      "fixedVersion": "",
      "supported": true
    },
    {
      "product": "Windows Server 2025",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2025",
      "fixedVersion": "",
      "supported": true
    },
    {
      "product": "Windows Server 2025 (Server Core installation)",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2025-server-core-installation",
      "fixedVersion": "",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2025-54100",
      "url": "https://patchblox.com/security/cve/CVE-2025-54100",
      "title": "PowerShell Remote Code Execution Vulnerability",
      "component": "Windows PowerShell",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.02234,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": true
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}