{
  "cveId": "CVE-2018-8126",
  "url": "https://patchblox.com/security/cve/CVE-2018-8126",
  "summary": "CVE-2018-8126 is fixed in 11 products on 1 platform, first by KB4103723, released May 8, 2018. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Internet Explorer Security Feature Bypass Vulnerability",
  "description": "\u003Cp\u003EA security feature bypass vulnerability exists when Internet Explorer fails to validate User Mode Code Integrity (UMCI) policies. The vulnerability could allow an attacker to bypass Device Guard UMCI policies.\u003C/p\u003E\n\u003Cp\u003ETo exploit the vulnerability, a user could either visit a malicious website or an attacker with access to the system could run a specially crafted application. An attacker could then leverage the vulnerability to run unsigned malicious code as though it were signed by a trusted source.\u003C/p\u003E\n\u003Cp\u003EThe update addresses the vulnerability by correcting how Internet Explorer validates UMCI policies.\u003C/p\u003E",
  "published": "2018-05-08T07:00:00Z",
  "severity": "Important",
  "cvss": 5.3,
  "epss": 0.055,
  "epssPercentile": 0.92836,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-8126",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "14393.2248",
      "fix": "KB4103723",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103723",
      "released": "2018-05-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "14393.2248",
      "fix": "KB4103723",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103723",
      "released": "2018-05-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems",
      "fixedVersion": "15063.1088",
      "fix": "KB4103731",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103731",
      "released": "2018-05-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems",
      "fixedVersion": "15063.1088",
      "fix": "KB4103731",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103731",
      "released": "2018-05-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems",
      "fixedVersion": "16299.431",
      "fix": "KB4103727",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103727",
      "released": "2018-05-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems",
      "fixedVersion": "16299.431",
      "fix": "KB4103727",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103727",
      "released": "2018-05-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems",
      "fixedVersion": "17134.48",
      "fix": "KB4103721",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103721",
      "released": "2018-05-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems",
      "fixedVersion": "17134.48",
      "fix": "KB4103721",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103721",
      "released": "2018-05-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 for 32-bit Systems",
      "fixedVersion": "10240.17861",
      "fix": "KB4103716",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103716",
      "released": "2018-05-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 for x64-based Systems",
      "fixedVersion": "10240.17861",
      "fix": "KB4103716",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103716",
      "released": "2018-05-08T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows Server 2016",
      "fixedVersion": "14393.2248",
      "fix": "KB4103723",
      "url": "https://patchblox.com/security/fix/microsoft/kb4103723",
      "released": "2018-05-08T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "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"
  }
}