{
  "fix": "KB5071544",
  "url": "https://patchblox.com/security/fix/microsoft/kb5071544",
  "summary": "KB5071544, released December 9, 2025, fixes 26 CVEs across 4 products. One of them is being exploited (CVE-2025-62221); 1 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "December 2025 cumulative update for Windows 10 1809",
  "released": "2025-12-09T00:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2025-62221, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 26,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 0,
  "maxEpss": 0.02505,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://support.microsoft.com/help/5071544",
  "appliesTo": [
    {
      "product": "Windows 10 Version 1809 for 32-bit Systems",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-10-version-1809-for-32-bit-systems",
      "fixedVersion": "17763.8146",
      "supported": true
    },
    {
      "product": "Windows 10 Version 1809 for x64-based Systems",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-10-version-1809-for-x64-based-systems",
      "fixedVersion": "17763.8146",
      "supported": true
    },
    {
      "product": "Windows Server 2019",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2019",
      "fixedVersion": "17763.8146",
      "supported": true
    },
    {
      "product": "Windows Server 2019 (Server Core installation)",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2019-server-core-installation",
      "fixedVersion": "17763.8146",
      "supported": true
    }
  ],
  "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": 0.02505,
      "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": 0.02452,
      "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": 0.02342,
      "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": 0.02293,
      "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": 0.02201,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62458",
      "url": "https://patchblox.com/security/cve/CVE-2025-62458",
      "title": "Win32k Elevation of Privilege Vulnerability",
      "component": "Windows Win32K - GRFX",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00657,
      "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": 0.00507,
      "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": 0.02234,
      "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": 0.01318,
      "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": 0.00566,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62455",
      "url": "https://patchblox.com/security/cve/CVE-2025-62455",
      "title": "Microsoft Message Queuing (MSMQ) Elevation of Privilege Vulnerability",
      "component": "Windows Message Queuing",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00473,
      "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": 0.00402,
      "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": 0.00402,
      "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": 0.00401,
      "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": 0.00401,
      "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": 0.00401,
      "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": 0.00401,
      "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": 0.00401,
      "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": 0.00401,
      "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": 0.00366,
      "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": 0.00366,
      "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": 0.00312,
      "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": 0.0025,
      "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": 0.00246,
      "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": 0.01078,
      "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": 0.01031,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T18:46:35Z"
}