{
  "fix": "KB5055596",
  "url": "https://patchblox.com/security/fix/microsoft/kb5055596",
  "summary": "KB5055596, released April 8, 2025, fixes 39 CVEs across 4 products. One of them is being exploited (CVE-2025-29824); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "April 2025 security update",
  "released": "2025-04-08T12:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2025-29824, exploited (CISA KEV, ransomware)",
  "supported": false,
  "cveCount": 39,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 1,
  "maxEpss": 0.19254,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://support.microsoft.com/help/5055596",
  "appliesTo": [
    {
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2008-for-32-bit-systems-service-pack-2",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2008-for-32-bit-systems-service-pack-2-server-core-installation",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2008-for-x64-based-systems-service-pack-2",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2008-for-x64-based-systems-service-pack-2-server-core-installation",
      "fixedVersion": "",
      "supported": false
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2025-29824",
      "url": "https://patchblox.com/security/cve/CVE-2025-29824",
      "title": "Windows Common Log File System Driver Elevation of Privilege Vulnerability",
      "component": "Windows Common Log File System Driver",
      "impact": "Elevation of Privilege",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.19254,
      "kev": true,
      "ransomware": true,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26670",
      "url": "https://patchblox.com/security/cve/CVE-2025-26670",
      "title": "Lightweight Directory Access Protocol (LDAP) Client Remote Code Execution Vulnerability",
      "component": "Windows LDAP - Lightweight Directory Access Protocol",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.1,
      "epss": 0.1105,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26663",
      "url": "https://patchblox.com/security/cve/CVE-2025-26663",
      "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": 0.01785,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26686",
      "url": "https://patchblox.com/security/cve/CVE-2025-26686",
      "title": "Windows TCP/IP Remote Code Execution Vulnerability",
      "component": "Windows TCP/IP",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 7.5,
      "epss": 0.01424,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27727",
      "url": "https://patchblox.com/security/cve/CVE-2025-27727",
      "title": "Windows Installer Elevation of Privilege Vulnerability",
      "component": "Windows Installer",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.01043,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21204",
      "url": "https://patchblox.com/security/cve/CVE-2025-21204",
      "title": "Windows Process Activation Elevation of Privilege Vulnerability",
      "component": "Windows Update Stack",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.07134,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27740",
      "url": "https://patchblox.com/security/cve/CVE-2025-27740",
      "title": "Active Directory Certificate Services Elevation of Privilege Vulnerability",
      "component": "Windows Active Directory Certificate Services",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.03522,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26673",
      "url": "https://patchblox.com/security/cve/CVE-2025-26673",
      "title": "Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability",
      "component": "Windows LDAP - Lightweight Directory Access Protocol",
      "impact": "Denial of Service",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.02726,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-29810",
      "url": "https://patchblox.com/security/cve/CVE-2025-29810",
      "title": "Active Directory Domain Services Elevation of Privilege Vulnerability",
      "component": "Active Directory Domain Services",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.02623,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27469",
      "url": "https://patchblox.com/security/cve/CVE-2025-27469",
      "title": "Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability",
      "component": "Windows LDAP - Lightweight Directory Access Protocol",
      "impact": "Denial of Service",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.02573,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26647",
      "url": "https://patchblox.com/security/cve/CVE-2025-26647",
      "title": "Windows Kerberos Elevation of Privilege Vulnerability",
      "component": "Windows Kerberos",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.023,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26641",
      "url": "https://patchblox.com/security/cve/CVE-2025-26641",
      "title": "Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability",
      "component": "Windows Cryptographic Services",
      "impact": "Denial of Service",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.02272,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27473",
      "url": "https://patchblox.com/security/cve/CVE-2025-27473",
      "title": "HTTP.sys Denial of Service Vulnerability",
      "component": "Windows HTTP.sys",
      "impact": "Denial of Service",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.02272,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27477",
      "url": "https://patchblox.com/security/cve/CVE-2025-27477",
      "title": "Windows Telephony Service Remote Code Execution Vulnerability",
      "component": "Windows Telephony Service",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01606,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26669",
      "url": "https://patchblox.com/security/cve/CVE-2025-26669",
      "title": "Windows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability",
      "component": "Windows Routing and Remote Access Service (RRAS)",
      "impact": "Information Disclosure",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01526,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21205",
      "url": "https://patchblox.com/security/cve/CVE-2025-21205",
      "title": "Windows Telephony Service Remote Code Execution Vulnerability",
      "component": "Windows Telephony Service",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01388,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21221",
      "url": "https://patchblox.com/security/cve/CVE-2025-21221",
      "title": "Windows Telephony Service Remote Code Execution Vulnerability",
      "component": "Windows Telephony Service",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01388,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21222",
      "url": "https://patchblox.com/security/cve/CVE-2025-21222",
      "title": "Windows Telephony Service Remote Code Execution Vulnerability",
      "component": "Windows Telephony Service",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01388,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27481",
      "url": "https://patchblox.com/security/cve/CVE-2025-27481",
      "title": "Windows Telephony Service Remote Code Execution Vulnerability",
      "component": "Windows Telephony Service",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01268,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26668",
      "url": "https://patchblox.com/security/cve/CVE-2025-26668",
      "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": 7.5,
      "epss": 0.01259,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26687",
      "url": "https://patchblox.com/security/cve/CVE-2025-26687",
      "title": "Win32k Elevation of Privilege Vulnerability",
      "component": "Windows Win32K - GRFX",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.01164,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27484",
      "url": "https://patchblox.com/security/cve/CVE-2025-27484",
      "title": "Windows Universal Plug and Play (UPnP) Device Host Elevation of Privilege Vulnerability",
      "component": "Windows Universal Plug and Play (UPnP) Device Host",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.0083,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27741",
      "url": "https://patchblox.com/security/cve/CVE-2025-27741",
      "title": "NTFS Elevation of Privilege Vulnerability",
      "component": "Windows NTFS",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00818,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27737",
      "url": "https://patchblox.com/security/cve/CVE-2025-27737",
      "title": "Windows Security Zone Mapping Security Feature Bypass Vulnerability",
      "component": "Windows Security Zone Mapping",
      "impact": "Security Feature Bypass",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.6,
      "epss": 0.00775,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27733",
      "url": "https://patchblox.com/security/cve/CVE-2025-27733",
      "title": "NTFS Elevation of Privilege Vulnerability",
      "component": "Windows NTFS",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00743,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26679",
      "url": "https://patchblox.com/security/cve/CVE-2025-26679",
      "title": "RPC Endpoint Mapper Service Elevation of Privilege Vulnerability",
      "component": "RPC Endpoint Mapper Service",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00586,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27478",
      "url": "https://patchblox.com/security/cve/CVE-2025-27478",
      "title": "Windows Local Security Authority (LSA) Elevation of Privilege Vulnerability",
      "component": "Windows Local Security Authority (LSA)",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.00461,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27732",
      "url": "https://patchblox.com/security/cve/CVE-2025-27732",
      "title": "Windows Graphics Component Elevation of Privilege Vulnerability",
      "component": "Windows Win32K - GRFX",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.00347,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26665",
      "url": "https://patchblox.com/security/cve/CVE-2025-26665",
      "title": "Windows upnphost.dll Elevation of Privilege Vulnerability",
      "component": "Windows upnphost.dll",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.00337,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21191",
      "url": "https://patchblox.com/security/cve/CVE-2025-21191",
      "title": "Windows Local Security Authority (LSA) Elevation of Privilege Vulnerability",
      "component": "Windows Local Security Authority (LSA)",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.00323,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21197",
      "url": "https://patchblox.com/security/cve/CVE-2025-21197",
      "title": "Windows NTFS Information Disclosure Vulnerability",
      "component": "Windows NTFS",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.03319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26664",
      "url": "https://patchblox.com/security/cve/CVE-2025-26664",
      "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": 0.01852,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26667",
      "url": "https://patchblox.com/security/cve/CVE-2025-26667",
      "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": 0.01852,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26672",
      "url": "https://patchblox.com/security/cve/CVE-2025-26672",
      "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": 0.01852,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27474",
      "url": "https://patchblox.com/security/cve/CVE-2025-27474",
      "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": 0.01852,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21203",
      "url": "https://patchblox.com/security/cve/CVE-2025-21203",
      "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": 0.01693,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26676",
      "url": "https://patchblox.com/security/cve/CVE-2025-26676",
      "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": 0.01662,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27471",
      "url": "https://patchblox.com/security/cve/CVE-2025-27471",
      "title": "Microsoft Streaming Service Denial of Service Vulnerability",
      "component": "Microsoft Streaming Service",
      "impact": "Denial of Service",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.9,
      "epss": 0.01315,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-27742",
      "url": "https://patchblox.com/security/cve/CVE-2025-27742",
      "title": "NTFS Information Disclosure Vulnerability",
      "component": "Windows NTFS",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.00879,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}