{
  "fix": "KB4530734",
  "url": "https://patchblox.com/security/fix/microsoft/kb4530734",
  "summary": "KB4530734, released December 10, 2019, fixes 14 CVEs across 8 products. One of them is being exploited (CVE-2019-1458); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "December 2019 security update",
  "released": "2019-12-10T08:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2019-1458, exploited (CISA KEV, ransomware)",
  "supported": false,
  "cveCount": 14,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 1,
  "maxEpss": 0.74438,
  "maxCvss": 8.4,
  "vendorAdvisory": "https://support.microsoft.com/help/4530734",
  "appliesTo": [
    {
      "product": "Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1",
      "productUrl": "https://patchblox.com/security/product/microsoft/internet-explorer-11-on-windows-7-for-32-bit-systems-service-pack-1",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1",
      "productUrl": "https://patchblox.com/security/product/microsoft/internet-explorer-11-on-windows-7-for-x64-based-systems-service-pack-1",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1",
      "productUrl": "https://patchblox.com/security/product/microsoft/internet-explorer-11-on-windows-server-2008-r2-for-x64-based-systems-service-pack-1",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows 7 for 32-bit Systems Service Pack 1",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-7-for-32-bit-systems-service-pack-1",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows 7 for x64-based Systems Service Pack 1",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-7-for-x64-based-systems-service-pack-1",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2008-r2-for-itanium-based-systems-service-pack-1",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2008-r2-for-x64-based-systems-service-pack-1",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2008-r2-for-x64-based-systems-service-pack-1-server-core-installation",
      "fixedVersion": "",
      "supported": false
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2019-1458",
      "url": "https://patchblox.com/security/cve/CVE-2019-1458",
      "title": "Win32k Elevation of Privilege Vulnerability",
      "component": "Windows Kernel",
      "impact": "Elevation of Privilege",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.74438,
      "kev": true,
      "ransomware": true,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1468",
      "url": "https://patchblox.com/security/cve/CVE-2019-1468",
      "title": "Win32k Graphics Remote Code Execution Vulnerability",
      "component": "Microsoft Graphics Component",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.4,
      "epss": 0.17684,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1485",
      "url": "https://patchblox.com/security/cve/CVE-2019-1485",
      "title": "VBScript Remote Code Execution Vulnerability",
      "component": "Microsoft Scripting Engine",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Low",
      "cvss": 6.4,
      "epss": 0.08205,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1453",
      "url": "https://patchblox.com/security/cve/CVE-2019-1453",
      "title": "Windows Remote Desktop Protocol (RDP) Denial of Service Vulnerability",
      "component": "Microsoft Windows",
      "impact": "Denial of Service",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.09745,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1484",
      "url": "https://patchblox.com/security/cve/CVE-2019-1484",
      "title": "Windows OLE Remote Code Execution Vulnerability",
      "component": "Windows OLE",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.09476,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1478",
      "url": "https://patchblox.com/security/cve/CVE-2019-1478",
      "title": "Windows COM Server Elevation of Privilege Vulnerability",
      "component": "Microsoft Windows",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00886,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1481",
      "url": "https://patchblox.com/security/cve/CVE-2019-1481",
      "title": "Windows Media Player Information Disclosure Vulnerability",
      "component": "Windows Media Player",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.16889,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1470",
      "url": "https://patchblox.com/security/cve/CVE-2019-1470",
      "title": "Windows Hyper-V Information Disclosure Vulnerability",
      "component": "Windows Hyper-V",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6,
      "epss": 0.06669,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1465",
      "url": "https://patchblox.com/security/cve/CVE-2019-1465",
      "title": "Windows GDI Information Disclosure Vulnerability",
      "component": "Microsoft Graphics Component",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.06016,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1466",
      "url": "https://patchblox.com/security/cve/CVE-2019-1466",
      "title": "Windows GDI Information Disclosure Vulnerability",
      "component": "Microsoft Graphics Component",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.06016,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1467",
      "url": "https://patchblox.com/security/cve/CVE-2019-1467",
      "title": "Windows GDI Information Disclosure Vulnerability",
      "component": "Microsoft Graphics Component",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.06013,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1480",
      "url": "https://patchblox.com/security/cve/CVE-2019-1480",
      "title": "Windows Media Player Information Disclosure Vulnerability",
      "component": "Windows Media Player",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.05969,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1474",
      "url": "https://patchblox.com/security/cve/CVE-2019-1474",
      "title": "Windows Kernel Information Disclosure Vulnerability",
      "component": "Microsoft Windows",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.01556,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-1488",
      "url": "https://patchblox.com/security/cve/CVE-2019-1488",
      "title": "Microsoft Defender Security Feature Bypass Vulnerability",
      "component": "Microsoft Windows",
      "impact": "Security Feature Bypass",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 3.3,
      "epss": 0.0086,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}