{
  "fix": "KB5071542",
  "url": "https://patchblox.com/security/fix/microsoft/kb5071542",
  "summary": "KB5071542, released December 9, 2025, fixes 30 CVEs in Windows Server 2022, 23H2 Edition (Server Core installation) (build 25398.2025). One of them is being exploited (CVE-2025-62221); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "ServicingStack",
  "title": "December 2025 cumulative update for Windows Server 23H2",
  "released": "2025-12-09T00:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2025-62221, exploited (CISA KEV)",
  "supported": false,
  "cveCount": 30,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 0,
  "maxEpss": 0.02628,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://support.microsoft.com/help/5071542",
  "appliesTo": [
    {
      "product": "Windows Server 2022, 23H2 Edition (Server Core installation)",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2022-23h2-edition-server-core-installation",
      "fixedVersion": "25398.2025",
      "supported": false
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2025-62221",
      "url": "https://patchblox.com/security/cve/CVE-2025-62221",
      "title": "Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability",
      "component": "Windows Cloud Files Mini Filter Driver",
      "impact": "Elevation of Privilege",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.02514,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-59517",
      "url": "https://patchblox.com/security/cve/CVE-2025-59517",
      "title": "Windows Storage VSP Driver Elevation of Privilege Vulnerability",
      "component": "Windows Storage VSP Driver",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.02628,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-59516",
      "url": "https://patchblox.com/security/cve/CVE-2025-59516",
      "title": "Windows Storage VSP Driver Elevation of Privilege Vulnerability",
      "component": "Windows Storage VSP Driver",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.02509,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62454",
      "url": "https://patchblox.com/security/cve/CVE-2025-62454",
      "title": "Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability",
      "component": "Windows Cloud Files Mini Filter Driver",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.02457,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62472",
      "url": "https://patchblox.com/security/cve/CVE-2025-62472",
      "title": "Windows Remote Access Connection Manager Elevation of Privilege Vulnerability",
      "component": "Windows Remote Access Connection Manager",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.02358,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62470",
      "url": "https://patchblox.com/security/cve/CVE-2025-62470",
      "title": "Windows Common Log File System Driver Elevation of Privilege Vulnerability",
      "component": "Windows Common Log File System Driver",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00544,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62468",
      "url": "https://patchblox.com/security/cve/CVE-2025-62468",
      "title": "Windows Defender Firewall Service Information Disclosure Vulnerability",
      "component": "Windows Defender Firewall Service",
      "impact": "Information Disclosure",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.00544,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "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": 0.0166,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": true
    },
    {
      "cveId": "CVE-2025-62549",
      "url": "https://patchblox.com/security/cve/CVE-2025-62549",
      "title": "Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability",
      "component": "Windows Routing and Remote Access Service (RRAS)",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01413,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62456",
      "url": "https://patchblox.com/security/cve/CVE-2025-62456",
      "title": "Windows Resilient File System (ReFS) Remote Code Execution Vulnerability",
      "component": "Windows Resilient File System (ReFS)",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01185,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62565",
      "url": "https://patchblox.com/security/cve/CVE-2025-62565",
      "title": "Windows File Explorer Elevation of Privilege Vulnerability",
      "component": "Windows Shell",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.3,
      "epss": 0.00606,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62457",
      "url": "https://patchblox.com/security/cve/CVE-2025-62457",
      "title": "Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability",
      "component": "Windows Cloud Files Mini Filter Driver",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00431,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62466",
      "url": "https://patchblox.com/security/cve/CVE-2025-62466",
      "title": "Windows Client-Side Caching Elevation of Privilege Vulnerability",
      "component": "Windows Client-Side Caching (CSC) Service",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00431,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-55233",
      "url": "https://patchblox.com/security/cve/CVE-2025-55233",
      "title": "Windows Projected File System Elevation of Privilege Vulnerability",
      "component": "Windows Projected File System",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0043,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62461",
      "url": "https://patchblox.com/security/cve/CVE-2025-62461",
      "title": "Windows Projected File System Elevation of Privilege Vulnerability",
      "component": "Windows Projected File System Filter Driver",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0043,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62462",
      "url": "https://patchblox.com/security/cve/CVE-2025-62462",
      "title": "Windows Projected File System Elevation of Privilege Vulnerability",
      "component": "Windows Projected File System",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0043,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62464",
      "url": "https://patchblox.com/security/cve/CVE-2025-62464",
      "title": "Windows Projected File System Elevation of Privilege Vulnerability",
      "component": "Windows Projected File System",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0043,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62467",
      "url": "https://patchblox.com/security/cve/CVE-2025-62467",
      "title": "Windows Projected File System Elevation of Privilege Vulnerability",
      "component": "Windows Projected File System",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0043,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62571",
      "url": "https://patchblox.com/security/cve/CVE-2025-62571",
      "title": "Windows Installer Elevation of Privilege Vulnerability",
      "component": "Windows Installer",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0043,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62474",
      "url": "https://patchblox.com/security/cve/CVE-2025-62474",
      "title": "Windows Remote Access Connection Manager Elevation of Privilege Vulnerability",
      "component": "Windows Remote Access Connection Manager",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00393,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-64673",
      "url": "https://patchblox.com/security/cve/CVE-2025-64673",
      "title": "Windows Storage VSP Driver Elevation of Privilege Vulnerability",
      "component": "Storvsp.sys Driver",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00392,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62569",
      "url": "https://patchblox.com/security/cve/CVE-2025-62569",
      "title": "Microsoft Brokering File System Elevation of Privilege Vulnerability",
      "component": "Microsoft Brokering File System",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.00354,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-64658",
      "url": "https://patchblox.com/security/cve/CVE-2025-64658",
      "title": "Windows File Explorer Elevation of Privilege Vulnerability",
      "component": "Windows Shell",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.00334,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-64661",
      "url": "https://patchblox.com/security/cve/CVE-2025-64661",
      "title": "Windows Shell Elevation of Privilege Vulnerability",
      "component": "Windows Shell",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00268,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62573",
      "url": "https://patchblox.com/security/cve/CVE-2025-62573",
      "title": "DirectX Graphics Kernel Elevation of Privilege Vulnerability",
      "component": "Windows DirectX",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.00264,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62473",
      "url": "https://patchblox.com/security/cve/CVE-2025-62473",
      "title": "Windows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability",
      "component": "Windows Routing and Remote Access Service (RRAS)",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.01156,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62567",
      "url": "https://patchblox.com/security/cve/CVE-2025-62567",
      "title": "Windows Hyper-V Denial of Service Vulnerability",
      "component": "Windows Hyper-V",
      "impact": "Denial of Service",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.3,
      "epss": 0.01105,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-64670",
      "url": "https://patchblox.com/security/cve/CVE-2025-64670",
      "title": "Windows DirectX Information Disclosure Vulnerability",
      "component": "Microsoft Graphics Component",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.01074,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62463",
      "url": "https://patchblox.com/security/cve/CVE-2025-62463",
      "title": "DirectX Graphics Kernel Denial of Service Vulnerability",
      "component": "Windows DirectX",
      "impact": "Denial of Service",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.00494,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62465",
      "url": "https://patchblox.com/security/cve/CVE-2025-62465",
      "title": "DirectX Graphics Kernel Denial of Service Vulnerability",
      "component": "Windows DirectX",
      "impact": "Denial of Service",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.00494,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}