{
  "cveId": "CVE-2026-50521",
  "url": "https://patchblox.com/security/cve/CVE-2026-50521",
  "summary": "CVE-2026-50521 is fixed in 4 products on 2 platforms, first by Microsoft Edge 149.0.4022.69, released June 12, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability",
  "description": "Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.",
  "published": "2026-07-01T21:17:03Z",
  "severity": "",
  "cvss": 8.3,
  "cwe": "CWE-416: Use After Free",
  "epss": 0.00822,
  "epssPercentile": 0.57574,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2026-50521",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "Microsoft Edge",
      "fixedVersion": "149.0.4022.69",
      "fix": "Microsoft Edge 149.0.4022.69",
      "url": "https://patchblox.com/security/fix/windows-app/microsoft.edge-149.0.4022.69",
      "released": "2026-06-12T00:00:00Z"
    },
    {
      "platform": "windows-app",
      "product": "Microsoft Edge Beta",
      "fixedVersion": "151.0.4129.59",
      "fix": "Microsoft Edge Beta 151.0.4129.59",
      "url": "https://patchblox.com/security/fix/windows-app/microsoft.edge.beta-151.0.4129.59",
      "released": "2026-07-31T00:00:00Z"
    },
    {
      "platform": "windows-app",
      "product": "Microsoft Edge Dev",
      "fixedVersion": "152.0.4167.0",
      "fix": "Microsoft Edge Dev 152.0.4167.0",
      "url": "https://patchblox.com/security/fix/windows-app/microsoft.edge.dev-152.0.4167.0",
      "released": "2026-07-20T00:00:00Z"
    },
    {
      "platform": "windows-app",
      "product": "Microsoft Edge WebView2 Runtime",
      "fixedVersion": "149.0.4022.69",
      "fix": "Microsoft Edge WebView2 Runtime 149.0.4022.69",
      "url": "https://patchblox.com/security/fix/windows-app/microsoft.edgewebview2runtime-149.0.4022.69",
      "released": "2026-06-12T00:00:00Z"
    },
    {
      "platform": "macos",
      "product": "Microsoft Edge",
      "fixedVersion": "149.0.4022.80",
      "fix": "Microsoft Edge 149.0.4022.80",
      "url": "https://patchblox.com/security/fix/macos/com.microsoft.edgemac-149.0.4022.80",
      "released": "2026-06-17T18:21:56Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T01:44:33Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}