{
  "fix": "KB5052105",
  "url": "https://patchblox.com/security/fix/microsoft/kb5052105",
  "summary": "KB5052105, released February 11, 2025, fixes 37 CVEs across 4 products. 2 of them are being exploited (CVE-2025-21391); 2 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "ServicingStack",
  "title": "February 2025 cumulative update for Windows 11 24H2",
  "released": "2025-02-11T00:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2025-21391, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 37,
  "exploitedCveCount": 2,
  "kevCveCount": 2,
  "ransomwareCveCount": 0,
  "maxEpss": 0.39926,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://support.microsoft.com/help/5052105",
  "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": "26100.3107",
      "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": "26100.3107",
      "supported": true
    },
    {
      "product": "Windows Server 2025",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2025",
      "fixedVersion": "26100.3107",
      "supported": true
    },
    {
      "product": "Windows Server 2025 (Server Core installation)",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2025-server-core-installation",
      "fixedVersion": "26100.3107",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2025-21391",
      "url": "https://patchblox.com/security/cve/CVE-2025-21391",
      "title": "Windows Storage Elevation of Privilege Vulnerability",
      "component": "Windows Storage",
      "impact": "Elevation of Privilege",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.1,
      "epss": 0.02284,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21418",
      "url": "https://patchblox.com/security/cve/CVE-2025-21418",
      "title": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability",
      "component": "Windows Ancillary Function Driver for WinSock",
      "impact": "Elevation of Privilege",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.02132,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21377",
      "url": "https://patchblox.com/security/cve/CVE-2025-21377",
      "title": "NTLM Hash Disclosure Spoofing Vulnerability",
      "component": "Windows NTLM",
      "impact": "Spoofing",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.39926,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": true
    },
    {
      "cveId": "CVE-2025-21376",
      "url": "https://patchblox.com/security/cve/CVE-2025-21376",
      "title": "Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability",
      "component": "Windows LDAP - Lightweight Directory Access Protocol",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.1,
      "epss": 0.09313,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21420",
      "url": "https://patchblox.com/security/cve/CVE-2025-21420",
      "title": "Windows Disk Cleanup Tool Elevation of Privilege Vulnerability",
      "component": "Windows Disk Cleanup Tool",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.03668,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21379",
      "url": "https://patchblox.com/security/cve/CVE-2025-21379",
      "title": "DHCP Client Service Remote Code Execution Vulnerability",
      "component": "Windows DHCP Server",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 7.1,
      "epss": 0.00907,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21358",
      "url": "https://patchblox.com/security/cve/CVE-2025-21358",
      "title": "Windows Core Messaging Elevation of Privileges Vulnerability",
      "component": "Windows CoreMessaging",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00759,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21419",
      "url": "https://patchblox.com/security/cve/CVE-2025-21419",
      "title": "Windows Setup Files Cleanup Elevation of Privilege Vulnerability",
      "component": "Windows Setup Files Cleanup",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.1,
      "epss": 0.00724,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21367",
      "url": "https://patchblox.com/security/cve/CVE-2025-21367",
      "title": "Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability",
      "component": "Windows Win32 Kernel Subsystem",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00643,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21414",
      "url": "https://patchblox.com/security/cve/CVE-2025-21414",
      "title": "Windows Core Messaging Elevation of Privileges Vulnerability",
      "component": "Windows DWM Core Library",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.00607,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21184",
      "url": "https://patchblox.com/security/cve/CVE-2025-21184",
      "title": "Windows Core Messaging Elevation of Privileges Vulnerability",
      "component": "Windows CoreMessaging",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.00605,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21181",
      "url": "https://patchblox.com/security/cve/CVE-2025-21181",
      "title": "Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability",
      "component": "Windows Message Queuing",
      "impact": "Denial of Service",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.03482,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21351",
      "url": "https://patchblox.com/security/cve/CVE-2025-21351",
      "title": "Windows Active Directory Domain Services API Denial of Service Vulnerability",
      "component": "Active Directory Domain Services",
      "impact": "Denial of Service",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.02474,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21371",
      "url": "https://patchblox.com/security/cve/CVE-2025-21371",
      "title": "Windows Telephony Service Remote Code Execution Vulnerability",
      "component": "Windows Telephony Service",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.02433,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21368",
      "url": "https://patchblox.com/security/cve/CVE-2025-21368",
      "title": "Microsoft Digest Authentication Remote Code Execution Vulnerability",
      "component": "Microsoft Digest Authentication",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.02151,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21369",
      "url": "https://patchblox.com/security/cve/CVE-2025-21369",
      "title": "Microsoft Digest Authentication Remote Code Execution Vulnerability",
      "component": "Microsoft Digest Authentication",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.02151,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21406",
      "url": "https://patchblox.com/security/cve/CVE-2025-21406",
      "title": "Windows Telephony Service Remote Code Execution Vulnerability",
      "component": "Windows Telephony Service",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01818,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21407",
      "url": "https://patchblox.com/security/cve/CVE-2025-21407",
      "title": "Windows Telephony Service Remote Code Execution Vulnerability",
      "component": "Windows Telephony Service",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01818,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21410",
      "url": "https://patchblox.com/security/cve/CVE-2025-21410",
      "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": 0.01818,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21190",
      "url": "https://patchblox.com/security/cve/CVE-2025-21190",
      "title": "Windows Telephony Service Remote Code Execution Vulnerability",
      "component": "Windows Telephony Service",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01812,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21200",
      "url": "https://patchblox.com/security/cve/CVE-2025-21200",
      "title": "Windows Telephony Service Remote Code Execution Vulnerability",
      "component": "Windows Telephony Service",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01812,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21201",
      "url": "https://patchblox.com/security/cve/CVE-2025-21201",
      "title": "Windows Telephony Server Remote Code Execution Vulnerability",
      "component": "Windows Telephony Server",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01812,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21208",
      "url": "https://patchblox.com/security/cve/CVE-2025-21208",
      "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": 0.01812,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21373",
      "url": "https://patchblox.com/security/cve/CVE-2025-21373",
      "title": "Windows Installer Elevation of Privilege Vulnerability",
      "component": "Windows Installer",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.008,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21375",
      "url": "https://patchblox.com/security/cve/CVE-2025-21375",
      "title": "Kernel Streaming WOW Thunk Service Driver Elevation of Privilege Vulnerability",
      "component": "Microsoft Streaming Service",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00648,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21359",
      "url": "https://patchblox.com/security/cve/CVE-2025-21359",
      "title": "Windows Kernel Security Feature Bypass Vulnerability",
      "component": "Windows Kernel",
      "impact": "Security Feature Bypass",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00561,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21182",
      "url": "https://patchblox.com/security/cve/CVE-2025-21182",
      "title": "Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability",
      "component": "Windows Resilient File System (ReFS) Deduplication Service",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.4,
      "epss": 0.00529,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21183",
      "url": "https://patchblox.com/security/cve/CVE-2025-21183",
      "title": "Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability",
      "component": "Windows Resilient File System (ReFS) Deduplication Service",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.4,
      "epss": 0.00529,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21350",
      "url": "https://patchblox.com/security/cve/CVE-2025-21350",
      "title": "Windows Kerberos Denial of Service Vulnerability",
      "component": "Windows Kerberos",
      "impact": "Denial of Service",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.9,
      "epss": 0.02127,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21349",
      "url": "https://patchblox.com/security/cve/CVE-2025-21349",
      "title": "Windows Remote Desktop Configuration Service Tampering Vulnerability",
      "component": "Windows Remote Desktop Services",
      "impact": "Tampering",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.8,
      "epss": 0.01141,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21254",
      "url": "https://patchblox.com/security/cve/CVE-2025-21254",
      "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": 0.01035,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21352",
      "url": "https://patchblox.com/security/cve/CVE-2025-21352",
      "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": 0.01035,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21212",
      "url": "https://patchblox.com/security/cve/CVE-2025-21212",
      "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": 0.01031,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21216",
      "url": "https://patchblox.com/security/cve/CVE-2025-21216",
      "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": 0.01031,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21179",
      "url": "https://patchblox.com/security/cve/CVE-2025-21179",
      "title": "DHCP Client Service Denial of Service Vulnerability",
      "component": "Windows DHCP Client",
      "impact": "Denial of Service",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.8,
      "epss": 0.0074,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21347",
      "url": "https://patchblox.com/security/cve/CVE-2025-21347",
      "title": "Windows Deployment Services Denial of Service Vulnerability",
      "component": "Windows Update Stack",
      "impact": "Denial of Service",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6,
      "epss": 0.00656,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21337",
      "url": "https://patchblox.com/security/cve/CVE-2025-21337",
      "title": "Windows NTFS Elevation of Privilege Vulnerability",
      "component": "Microsoft Windows",
      "impact": "Elevation of Privilege",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 3.3,
      "epss": 0.00608,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}