{
  "fix": "KB5034766",
  "url": "https://patchblox.com/security/fix/microsoft/kb5034766",
  "summary": "KB5034766, released February 13, 2024, fixes 40 CVEs across 2 products. 3 of them are being exploited (CVE-2024-21412); 3 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "February 2024 cumulative update for Windows 11 21H2",
  "released": "2024-02-13T00:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2024-21412, exploited (CISA KEV, ransomware)",
  "supported": false,
  "cveCount": 40,
  "exploitedCveCount": 3,
  "kevCveCount": 3,
  "ransomwareCveCount": 2,
  "maxEpss": 0.9941,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://support.microsoft.com/help/5034766",
  "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": "22000.2777",
      "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": "22000.2777",
      "supported": false
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2024-21412",
      "url": "https://patchblox.com/security/cve/CVE-2024-21412",
      "title": "Internet Shortcut Files Security Feature Bypass Vulnerability",
      "component": "Internet Shortcut Files",
      "impact": "Security Feature Bypass",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 8.1,
      "epss": 0.9941,
      "kev": true,
      "ransomware": true,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21338",
      "url": "https://patchblox.com/security/cve/CVE-2024-21338",
      "title": "Windows Kernel Elevation of Privilege Vulnerability",
      "component": "Windows Kernel",
      "impact": "Elevation of Privilege",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.5981,
      "kev": true,
      "ransomware": true,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21351",
      "url": "https://patchblox.com/security/cve/CVE-2024-21351",
      "title": "Windows SmartScreen Security Feature Bypass Vulnerability",
      "component": "Windows SmartScreen",
      "impact": "Security Feature Bypass",
      "priority": "Patch now",
      "severity": "Moderate",
      "cvss": 7.6,
      "epss": 0.27798,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21357",
      "url": "https://patchblox.com/security/cve/CVE-2024-21357",
      "title": "Windows Pragmatic General Multicast (PGM) Remote Code Execution Vulnerability",
      "component": "Windows Internet Connection Sharing (ICS)",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.1,
      "epss": 0.26899,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21371",
      "url": "https://patchblox.com/security/cve/CVE-2024-21371",
      "title": "Windows Kernel Elevation of Privilege Vulnerability",
      "component": "Windows Kernel",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.10884,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21346",
      "url": "https://patchblox.com/security/cve/CVE-2024-21346",
      "title": "Win32k Elevation of Privilege Vulnerability",
      "component": "Windows Win32K - ICOMP",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0412,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-20684",
      "url": "https://patchblox.com/security/cve/CVE-2024-20684",
      "title": "Windows Hyper-V Denial of Service Vulnerability",
      "component": "Windows Hyper-V",
      "impact": "Denial of Service",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 6.5,
      "epss": 0.0103,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21348",
      "url": "https://patchblox.com/security/cve/CVE-2024-21348",
      "title": "Internet Connection Sharing (ICS) Denial of Service Vulnerability",
      "component": "Windows Internet Connection Sharing (ICS)",
      "impact": "Denial of Service",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.02176,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21372",
      "url": "https://patchblox.com/security/cve/CVE-2024-21372",
      "title": "Windows OLE Remote Code Execution Vulnerability",
      "component": "Windows OLE",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01806,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21358",
      "url": "https://patchblox.com/security/cve/CVE-2024-21358",
      "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": 0.01768,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21360",
      "url": "https://patchblox.com/security/cve/CVE-2024-21360",
      "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": 0.01768,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21365",
      "url": "https://patchblox.com/security/cve/CVE-2024-21365",
      "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": 0.01768,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21366",
      "url": "https://patchblox.com/security/cve/CVE-2024-21366",
      "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": 0.01768,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21370",
      "url": "https://patchblox.com/security/cve/CVE-2024-21370",
      "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": 0.01768,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21420",
      "url": "https://patchblox.com/security/cve/CVE-2024-21420",
      "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": 0.0173,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21375",
      "url": "https://patchblox.com/security/cve/CVE-2024-21375",
      "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": 0.01652,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21349",
      "url": "https://patchblox.com/security/cve/CVE-2024-21349",
      "title": "Microsoft ActiveX Data Objects Remote Code Execution Vulnerability",
      "component": "Microsoft ActiveX",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01644,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21359",
      "url": "https://patchblox.com/security/cve/CVE-2024-21359",
      "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": 0.01644,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21361",
      "url": "https://patchblox.com/security/cve/CVE-2024-21361",
      "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": 0.01644,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21367",
      "url": "https://patchblox.com/security/cve/CVE-2024-21367",
      "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": 0.01644,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21368",
      "url": "https://patchblox.com/security/cve/CVE-2024-21368",
      "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": 0.01644,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21352",
      "url": "https://patchblox.com/security/cve/CVE-2024-21352",
      "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": 0.01628,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21391",
      "url": "https://patchblox.com/security/cve/CVE-2024-21391",
      "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": 0.01628,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21369",
      "url": "https://patchblox.com/security/cve/CVE-2024-21369",
      "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": 0.01549,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21350",
      "url": "https://patchblox.com/security/cve/CVE-2024-21350",
      "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": 0.01484,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21347",
      "url": "https://patchblox.com/security/cve/CVE-2024-21347",
      "title": "Microsoft ODBC Driver Remote Code Execution Vulnerability",
      "component": "SQL Server",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.01372,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21406",
      "url": "https://patchblox.com/security/cve/CVE-2024-21406",
      "title": "Windows Printing Service Spoofing Vulnerability",
      "component": "Microsoft Windows",
      "impact": "Spoofing",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.00856,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21363",
      "url": "https://patchblox.com/security/cve/CVE-2024-21363",
      "title": "Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability",
      "component": "Windows Message Queuing",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00801,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21354",
      "url": "https://patchblox.com/security/cve/CVE-2024-21354",
      "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": 0.00614,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21405",
      "url": "https://patchblox.com/security/cve/CVE-2024-21405",
      "title": "Microsoft Message Queuing (MSMQ) Elevation of Privilege Vulnerability",
      "component": "Windows Message Queuing",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.00384,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21355",
      "url": "https://patchblox.com/security/cve/CVE-2024-21355",
      "title": "Microsoft Message Queuing (MSMQ) Elevation of Privilege Vulnerability",
      "component": "Windows Message Queuing",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.00322,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21356",
      "url": "https://patchblox.com/security/cve/CVE-2024-21356",
      "title": "Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability",
      "component": "Windows LDAP - Lightweight Directory Access Protocol",
      "impact": "Denial of Service",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.02079,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21343",
      "url": "https://patchblox.com/security/cve/CVE-2024-21343",
      "title": "Windows Network Address Translation (NAT) Denial of Service Vulnerability",
      "component": "Windows Internet Connection Sharing (ICS)",
      "impact": "Denial of Service",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.9,
      "epss": 0.01842,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21344",
      "url": "https://patchblox.com/security/cve/CVE-2024-21344",
      "title": "Windows Network Address Translation (NAT) Denial of Service Vulnerability",
      "component": "Windows Internet Connection Sharing (ICS)",
      "impact": "Denial of Service",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.9,
      "epss": 0.01691,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21341",
      "url": "https://patchblox.com/security/cve/CVE-2024-21341",
      "title": "Windows Kernel Remote Code Execution Vulnerability",
      "component": "Windows Kernel",
      "impact": "Remote Code Execution",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.8,
      "epss": 0.00952,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21340",
      "url": "https://patchblox.com/security/cve/CVE-2024-21340",
      "title": "Windows Kernel Information Disclosure Vulnerability",
      "component": "Windows Kernel",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00752,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21377",
      "url": "https://patchblox.com/security/cve/CVE-2024-21377",
      "title": "Windows DNS Information Disclosure Vulnerability",
      "component": "Microsoft Windows DNS",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.00649,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21339",
      "url": "https://patchblox.com/security/cve/CVE-2024-21339",
      "title": "Windows USB Generic Parent Driver Remote Code Execution Vulnerability",
      "component": "Windows USB Serial Driver",
      "impact": "Remote Code Execution",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.4,
      "epss": 0.00551,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21304",
      "url": "https://patchblox.com/security/cve/CVE-2024-21304",
      "title": "Trusted Compute Base Elevation of Privilege Vulnerability",
      "component": "Trusted Compute Base",
      "impact": "Elevation of Privilege",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.1,
      "epss": 0.00482,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-21362",
      "url": "https://patchblox.com/security/cve/CVE-2024-21362",
      "title": "Windows Kernel Security Feature Bypass Vulnerability",
      "component": "Windows Kernel",
      "impact": "Security Feature Bypass",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.00423,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}