{
  "cveId": "CVE-2019-1054",
  "url": "https://patchblox.com/security/cve/CVE-2019-1054",
  "summary": "CVE-2019-1054 is fixed in 18 products on 1 platform, first by KB4503267, released June 11, 2019. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.",
  "title": "Microsoft Edge Security Feature Bypass Vulnerability",
  "description": "\u003Cp\u003EA security feature bypass vulnerability exists in Edge that allows for bypassing Mark of the Web Tagging (MOTW). Failing to set the MOTW means that a large number of Microsoft security technologies are bypassed.\u003C/p\u003E\n\u003Cp\u003EIn a web-based attack scenario, an attacker could host a malicious website that is designed to exploit the security feature bypass. Alternatively, in an email or instant message attack scenario, the attacker could send the targeted user a specially crafted .url file that is designed to exploit the bypass. Additionally, compromised websites or websites that accept or host user-provided content could contain specially crafted content to exploit the security feature bypass. However, in all cases an attacker would have no way to force a user to view attacker-controlled content. Instead, an attacker would have to convince a user to take action. For example, an attacker could entice a user to either click a link that directs the user to the attacker\u0027s site or send a malicious attachment.\u003C/p\u003E\n\u003Cp\u003EThe security update addresses the security feature bypass by correcting how Edge handles MOTW tagging.\u003C/p\u003E",
  "published": "2019-06-11T07:00:00Z",
  "severity": "Important",
  "cvss": 5,
  "epss": 0.01604,
  "epssPercentile": 0.76001,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation More Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1054",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "14393.3025",
      "fix": "KB4503267",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503267",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "14393.3025",
      "fix": "KB4503267",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503267",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems",
      "fixedVersion": "15063.1868",
      "fix": "KB4503279",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503279",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems",
      "fixedVersion": "15063.1868",
      "fix": "KB4503279",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503279",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems",
      "fixedVersion": "16299.1217",
      "fix": "KB4503284",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503284",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for ARM64-based Systems",
      "fixedVersion": "16299.1217",
      "fix": "KB4503284",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503284",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems",
      "fixedVersion": "16299.1217",
      "fix": "KB4503284",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503284",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems",
      "fixedVersion": "17134.829",
      "fix": "KB4503286",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503286",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems",
      "fixedVersion": "17134.829",
      "fix": "KB4503286",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503286",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems",
      "fixedVersion": "17134.829",
      "fix": "KB4503286",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503286",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "17763.557",
      "fix": "KB4503327",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503327",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems",
      "fixedVersion": "17763.557",
      "fix": "KB4503327",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503327",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "17763.557",
      "fix": "KB4503327",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503327",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems",
      "fixedVersion": "18362.175",
      "fix": "KB4503293",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503293",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems",
      "fixedVersion": "18362.175",
      "fix": "KB4503293",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503293",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems",
      "fixedVersion": "18362.175",
      "fix": "KB4503293",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503293",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows Server 2016",
      "fixedVersion": "14393.3025",
      "fix": "KB4503267",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503267",
      "released": "2019-06-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Edge (EdgeHTML-based) on Windows Server 2019",
      "fixedVersion": "17763.557",
      "fix": "KB4503327",
      "url": "https://patchblox.com/security/fix/microsoft/kb4503327",
      "released": "2019-06-11T00:00:00Z"
    }
  ],
  "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"
  }
}