{
  "cveId": "CVE-2018-8357",
  "url": "https://patchblox.com/security/cve/CVE-2018-8357",
  "summary": "CVE-2018-8357 is fixed in 22 products on 1 platform, first by KB4343887, released August 14, 2018. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Microsoft Browser Elevation of Privilege Vulnerability",
  "description": "\u003Cp\u003EAn elevation of privilege vulnerability exists in Microsoft browsers allowing sandbox escape. An attacker who successfully exploited the vulnerability could use the sandbox escape to elevate privileges on an affected system.\u003C/p\u003E\n\u003Cp\u003EThis vulnerability by itself does not allow arbitrary code execution; however, it could allow arbitrary code to be run if the attacker uses it in combination with another vulnerability (such as a remote code execution vulnerability or another elevation of privilege vulnerability) that is capable of leveraging the elevated privileges when code execution is attempted.\u003C/p\u003E",
  "published": "2018-08-14T07:00:00Z",
  "severity": "Important",
  "cvss": 3,
  "epss": 0.08286,
  "epssPercentile": 0.94952,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-8357",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "14393.2430",
      "fix": "KB4343887",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343887",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "14393.2430",
      "fix": "KB4343887",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343887",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems",
      "fixedVersion": "15063.1266",
      "fix": "KB4343885",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343885",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems",
      "fixedVersion": "15063.1266",
      "fix": "KB4343885",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343885",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems",
      "fixedVersion": "16299.611",
      "fix": "KB4343897",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343897",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems",
      "fixedVersion": "16299.611",
      "fix": "KB4343897",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343897",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems",
      "fixedVersion": "17134.228",
      "fix": "KB4343909",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343909",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems",
      "fixedVersion": "17134.228",
      "fix": "KB4343909",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343909",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 for 32-bit Systems",
      "fixedVersion": "10240.17946",
      "fix": "KB4343892",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343892",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows 10 for x64-based Systems",
      "fixedVersion": "10240.17946",
      "fix": "KB4343892",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343892",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Internet Explorer 11 on Windows Server 2016",
      "fixedVersion": "14393.2430",
      "fix": "KB4343887",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343887",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "14393.2430",
      "fix": "KB4343887",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343887",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "14393.2430",
      "fix": "KB4343887",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343887",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems",
      "fixedVersion": "15063.1266",
      "fix": "KB4343885",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343885",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems",
      "fixedVersion": "15063.1266",
      "fix": "KB4343885",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343885",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems",
      "fixedVersion": "16299.611",
      "fix": "KB4343897",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343897",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems",
      "fixedVersion": "16299.611",
      "fix": "KB4343897",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343897",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems",
      "fixedVersion": "17134.228",
      "fix": "KB4343909",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343909",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems",
      "fixedVersion": "17134.228",
      "fix": "KB4343909",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343909",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems",
      "fixedVersion": "10240.17946",
      "fix": "KB4343892",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343892",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems",
      "fixedVersion": "10240.17946",
      "fix": "KB4343892",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343892",
      "released": "2018-08-14T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows Server 2016",
      "fixedVersion": "14393.2430",
      "fix": "KB4343887",
      "url": "https://patchblox.com/security/fix/microsoft/kb4343887",
      "released": "2018-08-14T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}