{
  "fix": "KB4103715",
  "url": "https://patchblox.com/security/fix/microsoft/kb4103715",
  "summary": "KB4103715, released May 8, 2018, fixes 13 CVEs across 4 products. 2 of them are being exploited (CVE-2018-8174); 2 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "May 2018 security update",
  "released": "2018-05-08T07:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2018-8174, exploited (CISA KEV, ransomware)",
  "supported": true,
  "cveCount": 13,
  "exploitedCveCount": 2,
  "kevCveCount": 2,
  "ransomwareCveCount": 1,
  "maxEpss": 0.88243,
  "maxCvss": 7.6,
  "vendorAdvisory": "https://support.microsoft.com/help/4103715",
  "appliesTo": [
    {
      "product": "Windows 8.1 for 32-bit systems",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-8.1-for-32-bit-systems",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows 8.1 for x64-based systems",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-8.1-for-x64-based-systems",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows Server 2012 R2",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2012-r2",
      "fixedVersion": "",
      "supported": true
    },
    {
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2012-r2-server-core-installation",
      "fixedVersion": "",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2018-8174",
      "url": "https://patchblox.com/security/cve/CVE-2018-8174",
      "title": "Windows VBScript Engine Remote Code Execution Vulnerability",
      "component": "Microsoft Windows",
      "impact": "Remote Code Execution",
      "priority": "Patch now",
      "severity": "Critical",
      "cvss": 7.5,
      "epss": 0.88243,
      "kev": true,
      "ransomware": true,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2018-0824",
      "url": "https://patchblox.com/security/cve/CVE-2018-0824",
      "title": "Microsoft COM for Windows Remote Code Execution Vulnerability",
      "component": "Windows COM",
      "impact": "Remote Code Execution",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.73037,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2018-0959",
      "url": "https://patchblox.com/security/cve/CVE-2018-0959",
      "title": "Windows Hyper-V Remote Code Execution Vulnerability",
      "component": "Windows Hyper-V",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 7.6,
      "epss": 0.09803,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2018-8134",
      "url": "https://patchblox.com/security/cve/CVE-2018-8134",
      "title": "Windows Elevation of Privilege Vulnerability",
      "component": "Windows Kernel",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.02929,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2018-8127",
      "url": "https://patchblox.com/security/cve/CVE-2018-8127",
      "title": "Windows Kernel Information Disclosure Vulnerability",
      "component": "Windows Kernel",
      "impact": "Information Disclosure",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 4.7,
      "epss": 0.02896,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2018-8164",
      "url": "https://patchblox.com/security/cve/CVE-2018-8164",
      "title": "Win32k Elevation of Privilege Vulnerability",
      "component": "Microsoft Graphics Component",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.01457,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2018-8124",
      "url": "https://patchblox.com/security/cve/CVE-2018-8124",
      "title": "Win32k Elevation of Privilege Vulnerability",
      "component": "Microsoft Graphics Component",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.012,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2018-8167",
      "url": "https://patchblox.com/security/cve/CVE-2018-8167",
      "title": "Windows Common Log File System Driver Elevation of Privilege Vulnerability",
      "component": "Common Log File System Driver",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.01016,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2018-0886",
      "url": "https://patchblox.com/security/cve/CVE-2018-0886",
      "title": "CredSSP Remote Code Execution Vulnerability",
      "component": "Microsoft Windows",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.1,
      "epss": 0.8197,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2018-8897",
      "url": "https://patchblox.com/security/cve/CVE-2018-8897",
      "title": "Windows Kernel Elevation of Privilege Vulnerability",
      "component": "Windows Kernel",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.18485,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2018-8166",
      "url": "https://patchblox.com/security/cve/CVE-2018-8166",
      "title": "Win32k Elevation of Privilege Vulnerability",
      "component": "Windows Kernel",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.01222,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2018-8136",
      "url": "https://patchblox.com/security/cve/CVE-2018-8136",
      "title": "Windows Remote Code Execution Vulnerability",
      "component": "Microsoft Windows",
      "impact": "Remote Code Execution",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 6.5,
      "epss": 0.23013,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2017-11927",
      "url": "https://patchblox.com/security/cve/CVE-2017-11927",
      "title": "Microsoft Windows Information Disclosure Vulnerability",
      "component": "Microsoft Windows",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.3,
      "epss": 0.09617,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}