{
  "fix": "KB3203621",
  "url": "https://patchblox.com/security/fix/microsoft/kb3203621",
  "summary": "KB3203621, released December 13, 2016, fixes 5 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "December 2016 security update",
  "released": "2016-12-13T08:00:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2016-7202, exploitation more likely",
  "supported": false,
  "cveCount": 5,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.73944,
  "maxCvss": 6.4,
  "vendorAdvisory": "https://support.microsoft.com/help/3203621",
  "appliesTo": [
    {
      "product": "Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2",
      "productUrl": "https://patchblox.com/security/product/microsoft/internet-explorer-9-on-windows-server-2008-for-32-bit-systems-service-pack-2",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2",
      "productUrl": "https://patchblox.com/security/product/microsoft/internet-explorer-9-on-windows-server-2008-for-x64-based-systems-service-pack-2",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Internet Explorer 9 on Windows Vista Service Pack 2",
      "productUrl": "https://patchblox.com/security/product/microsoft/internet-explorer-9-on-windows-vista-service-pack-2",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Internet Explorer 9 on Windows Vista x64 Edition Service Pack 2",
      "productUrl": "https://patchblox.com/security/product/microsoft/internet-explorer-9-on-windows-vista-x64-edition-service-pack-2",
      "fixedVersion": "",
      "supported": false
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2016-7202",
      "url": "https://patchblox.com/security/cve/CVE-2016-7202",
      "title": "Scripting Engine Memory Corruption Vulnerability",
      "component": "Microsoft Browsers",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 4.2,
      "epss": 0.73944,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2016-7283",
      "url": "https://patchblox.com/security/cve/CVE-2016-7283",
      "title": "Microsoft Browser Memory Corruption Vulnerability",
      "component": "Internet Explorer",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Moderate",
      "cvss": 6.4,
      "epss": 0.17939,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2016-7279",
      "url": "https://patchblox.com/security/cve/CVE-2016-7279",
      "title": "Microsoft Browser Memory Corruption Vulnerability",
      "component": "Microsoft Browsers",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Low",
      "cvss": 6.4,
      "epss": 0.15106,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2016-7278",
      "url": "https://patchblox.com/security/cve/CVE-2016-7278",
      "title": "Microsoft Browser Information Disclosure Vulnerability",
      "component": "Internet Explorer",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 2.4,
      "epss": 0.14786,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2016-7282",
      "url": "https://patchblox.com/security/cve/CVE-2016-7282",
      "title": "Microsft Browser Information Disclosure Vulnerability",
      "component": "Microsoft Browsers",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.3,
      "epss": 0.10056,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": true
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}