{
  "fix": "KB5033369",
  "url": "https://patchblox.com/security/fix/microsoft/kb5033369",
  "summary": "KB5033369, released December 12, 2023, fixes 16 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "December 2023 cumulative update for Windows 11 21H2",
  "released": "2023-12-12T00:00:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2023-35628, exploitation more likely",
  "supported": false,
  "cveCount": 16,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.92817,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://support.microsoft.com/help/5033369",
  "appliesTo": [
    {
      "product": "Windows 11 version 21H2 for ARM64-based Systems",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-11-version-21h2-for-arm64-based-systems",
      "fixedVersion": "22000.2652",
      "supported": false
    },
    {
      "product": "Windows 11 version 21H2 for x64-based Systems",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-11-version-21h2-for-x64-based-systems",
      "fixedVersion": "22000.2652",
      "supported": false
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2023-35628",
      "url": "https://patchblox.com/security/cve/CVE-2023-35628",
      "title": "Windows MSHTML Platform Remote Code Execution Vulnerability",
      "component": "Windows MSHTML Platform",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.1,
      "epss": 0.92817,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-36005",
      "url": "https://patchblox.com/security/cve/CVE-2023-36005",
      "title": "Windows Telephony Server Elevation of Privilege Vulnerability",
      "component": "Windows Telephony Server",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.23857,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-35641",
      "url": "https://patchblox.com/security/cve/CVE-2023-35641",
      "title": "Internet Connection Sharing (ICS) Remote Code Execution Vulnerability",
      "component": "Windows Internet Connection Sharing (ICS)",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.8,
      "epss": 0.0722,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-35631",
      "url": "https://patchblox.com/security/cve/CVE-2023-35631",
      "title": "Win32k Elevation of Privilege Vulnerability",
      "component": "Windows Win32K",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.06548,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-35644",
      "url": "https://patchblox.com/security/cve/CVE-2023-35644",
      "title": "Windows Sysmain Service Elevation of Privilege Vulnerability",
      "component": "Windows Kernel-Mode Drivers",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0625,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-35630",
      "url": "https://patchblox.com/security/cve/CVE-2023-35630",
      "title": "Internet Connection Sharing (ICS) Remote Code Execution Vulnerability",
      "component": "Windows Internet Connection Sharing (ICS)",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.8,
      "epss": 0.06127,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-36696",
      "url": "https://patchblox.com/security/cve/CVE-2023-36696",
      "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": 0.00864,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-36011",
      "url": "https://patchblox.com/security/cve/CVE-2023-36011",
      "title": "Win32k Elevation of Privilege Vulnerability",
      "component": "Windows Win32K",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00705,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-35639",
      "url": "https://patchblox.com/security/cve/CVE-2023-35639",
      "title": "Microsoft ODBC Driver Remote Code Execution Vulnerability",
      "component": "Windows ODBC Driver",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.02368,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-36006",
      "url": "https://patchblox.com/security/cve/CVE-2023-36006",
      "title": "Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability",
      "component": "Microsoft WDAC OLE DB provider for SQL",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01891,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-36004",
      "url": "https://patchblox.com/security/cve/CVE-2023-36004",
      "title": "Windows DPAPI (Data Protection Application Programming Interface) Spoofing Vulnerability",
      "component": "Windows DPAPI (Data Protection Application Programming Interface)",
      "impact": "Spoofing",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.01369,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-21740",
      "url": "https://patchblox.com/security/cve/CVE-2023-21740",
      "title": "Windows Media Remote Code Execution Vulnerability",
      "component": "Windows Media",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.01085,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-35634",
      "url": "https://patchblox.com/security/cve/CVE-2023-35634",
      "title": "Windows Bluetooth Driver Remote Code Execution Vulnerability",
      "component": "Microsoft Bluetooth Driver",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8,
      "epss": 0.00954,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-20588",
      "url": "https://patchblox.com/security/cve/CVE-2023-20588",
      "title": "AMD: CVE-2023-20588 AMD Speculative Leaks Security Notice",
      "component": "Chipsets",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6,
      "epss": 0.11151,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": true
    },
    {
      "cveId": "CVE-2023-36003",
      "url": "https://patchblox.com/security/cve/CVE-2023-36003",
      "title": "XAML Diagnostics Elevation of Privilege Vulnerability",
      "component": "XAML Diagnostics",
      "impact": "Elevation of Privilege",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.7,
      "epss": 0.02846,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-35642",
      "url": "https://patchblox.com/security/cve/CVE-2023-35642",
      "title": "Internet Connection Sharing (ICS) Denial of Service Vulnerability",
      "component": "Windows Internet Connection Sharing (ICS)",
      "impact": "Denial of Service",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.01282,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}