{
  "fix": "KB4483228",
  "url": "https://patchblox.com/security/fix/microsoft/kb4483228",
  "summary": "KB4483228, released December 19, 2018, fixes 1 CVE across 2 products. One of them is being exploited (CVE-2018-8653); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Out-of-band",
  "title": "December 2018 cumulative update for Windows 10 1507",
  "released": "2018-12-19T00:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2018-8653, exploited (CISA KEV)",
  "supported": false,
  "cveCount": 1,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 0,
  "maxEpss": 0.29606,
  "maxCvss": 6.4,
  "vendorAdvisory": "https://support.microsoft.com/help/4483228",
  "appliesTo": [
    {
      "product": "Internet Explorer 11 on Windows 10 for 32-bit Systems",
      "productUrl": "https://patchblox.com/security/product/microsoft/internet-explorer-11-on-windows-10-for-32-bit-systems",
      "fixedVersion": "10240.18064",
      "supported": false
    },
    {
      "product": "Internet Explorer 11 on Windows 10 for x64-based Systems",
      "productUrl": "https://patchblox.com/security/product/microsoft/internet-explorer-11-on-windows-10-for-x64-based-systems",
      "fixedVersion": "10240.18064",
      "supported": false
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2018-8653",
      "url": "https://patchblox.com/security/cve/CVE-2018-8653",
      "title": "Scripting Engine Memory Corruption Vulnerability",
      "component": "Internet Explorer",
      "impact": "Remote Code Execution",
      "priority": "Patch now",
      "severity": "Moderate",
      "cvss": 6.4,
      "epss": 0.29606,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}