{
  "fix": "Microsoft Edge 153.0.4234.46",
  "url": "https://patchblox.com/security/fix/macos/com.microsoft.edgemac-153.0.4234.46",
  "summary": "Microsoft Edge 153.0.4234.46, released September 16, 2026, fixes 40 CVEs in Microsoft Edge. None of them is reported as exploited. Patch Radar priority: Urgent. The latest Microsoft Edge is 157.0.4341.42, which also fixes every one of these CVEs.",
  "platform": "macos",
  "type": "app-version",
  "title": "Microsoft Edge 153.0.4234.46",
  "released": "2026-09-16T23:31:41Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-91721, rated Critical",
  "supported": true,
  "cveCount": 40,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.0082,
  "maxCvss": 9.6,
  "appliesTo": [
    {
      "product": "Microsoft Edge",
      "productUrl": "https://patchblox.com/security/product/macos/microsoft-edge",
      "fixedVersion": "153.0.4234.46",
      "latestVersion": "157.0.4341.42",
      "supported": true
    }
  ],
  "supersededBy": {
    "product": "Microsoft Edge",
    "latestVersion": "157.0.4341.42",
    "productUrl": "https://patchblox.com/security/product/macos/microsoft-edge"
  },
  "cves": [
    {
      "cveId": "CVE-2026-91721",
      "url": "https://patchblox.com/security/cve/CVE-2026-91721",
      "title": "Chromium CVE-2026-91721: Use after free",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.8,
      "epss": 0.00385,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91749",
      "url": "https://patchblox.com/security/cve/CVE-2026-91749",
      "title": "Chromium CVE-2026-91749: Use after free",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 9.6,
      "epss": 0.00377,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-88094",
      "url": "https://patchblox.com/security/cve/CVE-2026-88094",
      "title": "Azure Storage Library Elevation of Privilege Vulnerability",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.1,
      "epss": 0.0082,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91731",
      "url": "https://patchblox.com/security/cve/CVE-2026-91731",
      "title": "Chromium CVE-2026-91731: Type confusion",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00444,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91741",
      "url": "https://patchblox.com/security/cve/CVE-2026-91741",
      "title": "Chromium CVE-2026-91741: Type confusion",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00444,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91728",
      "url": "https://patchblox.com/security/cve/CVE-2026-91728",
      "title": "Chromium CVE-2026-91728: Integer overflow",
      "priority": "High",
      "severity": "Important",
      "cvss": 9.6,
      "epss": 0.00407,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91709",
      "url": "https://patchblox.com/security/cve/CVE-2026-91709",
      "title": "Chromium CVE-2026-91709: Type confusion",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00407,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91745",
      "url": "https://patchblox.com/security/cve/CVE-2026-91745",
      "title": "Chromium CVE-2026-91745: Use after free",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00359,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91729",
      "url": "https://patchblox.com/security/cve/CVE-2026-91729",
      "title": "Chromium CVE-2026-91729: Use after free",
      "priority": "High",
      "severity": "Important",
      "cvss": 9.6,
      "epss": 0.00339,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91736",
      "url": "https://patchblox.com/security/cve/CVE-2026-91736",
      "title": "Chromium CVE-2026-91736: Use after free",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00339,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91737",
      "url": "https://patchblox.com/security/cve/CVE-2026-91737",
      "title": "Chromium CVE-2026-91737: Use after free",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00339,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91724",
      "url": "https://patchblox.com/security/cve/CVE-2026-91724",
      "title": "Chromium CVE-2026-91724: Use after free",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.3,
      "epss": 0.00336,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91718",
      "url": "https://patchblox.com/security/cve/CVE-2026-91718",
      "title": "Chromium CVE-2026-91718: Use after free",
      "priority": "High",
      "severity": "Important",
      "cvss": 9.6,
      "epss": 0.00332,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91738",
      "url": "https://patchblox.com/security/cve/CVE-2026-91738",
      "title": "Chromium CVE-2026-91738: Improper input validation",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 9.6,
      "epss": 0.00326,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91715",
      "url": "https://patchblox.com/security/cve/CVE-2026-91715",
      "title": "Chromium CVE-2026-91715: Type confusion",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00325,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91733",
      "url": "https://patchblox.com/security/cve/CVE-2026-91733",
      "title": "Chromium CVE-2026-91733: Improper state validation",
      "priority": "High",
      "severity": "Important",
      "cvss": 9.6,
      "epss": 0.00315,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91710",
      "url": "https://patchblox.com/security/cve/CVE-2026-91710",
      "title": "Chromium CVE-2026-91710: Use after free",
      "priority": "High",
      "severity": "Important",
      "cvss": 9.6,
      "epss": 0.00311,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91716",
      "url": "https://patchblox.com/security/cve/CVE-2026-91716",
      "title": "Chromium CVE-2026-91716: Use after free",
      "priority": "High",
      "severity": "Important",
      "cvss": 9.6,
      "epss": 0.00311,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91711",
      "url": "https://patchblox.com/security/cve/CVE-2026-91711",
      "title": "Chromium CVE-2026-91711: Out of bounds write",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00311,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91722",
      "url": "https://patchblox.com/security/cve/CVE-2026-91722",
      "title": "Chromium CVE-2026-91722: Use after free",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 8.8,
      "epss": 0.00311,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91735",
      "url": "https://patchblox.com/security/cve/CVE-2026-91735",
      "title": "Chromium CVE-2026-91735: Incorrect authorization",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.3,
      "epss": 0.00311,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91712",
      "url": "https://patchblox.com/security/cve/CVE-2026-91712",
      "title": "Chromium CVE-2026-91712: Race condition",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.3,
      "epss": 0.00268,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91720",
      "url": "https://patchblox.com/security/cve/CVE-2026-91720",
      "title": "Chromium CVE-2026-91720: Uninitialized resource",
      "priority": "High",
      "severity": "Important",
      "cvss": 9.6,
      "epss": 0.00266,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91732",
      "url": "https://patchblox.com/security/cve/CVE-2026-91732",
      "title": "Chromium CVE-2026-91732: Missing authorization",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 8.1,
      "epss": 0.00261,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-88097",
      "url": "https://patchblox.com/security/cve/CVE-2026-88097",
      "title": "Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.1,
      "epss": 0.00256,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91743",
      "url": "https://patchblox.com/security/cve/CVE-2026-91743",
      "title": "Chromium CVE-2026-91743: Race condition",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.3,
      "epss": 0.00252,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91740",
      "url": "https://patchblox.com/security/cve/CVE-2026-91740",
      "title": "Chromium CVE-2026-91740: Uninitialized resource",
      "priority": "High",
      "severity": "Important",
      "cvss": 9.6,
      "epss": 0.00248,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91747",
      "url": "https://patchblox.com/security/cve/CVE-2026-91747",
      "title": "Chromium CVE-2026-91747: Use after free",
      "priority": "High",
      "severity": "Important",
      "cvss": 9.6,
      "epss": 0.00247,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91719",
      "url": "https://patchblox.com/security/cve/CVE-2026-91719",
      "title": "Chromium CVE-2026-91719: Code injection",
      "priority": "High",
      "severity": "Low",
      "cvss": 8.1,
      "epss": 0.00233,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91748",
      "url": "https://patchblox.com/security/cve/CVE-2026-91748",
      "title": "Chromium CVE-2026-91748: Race condition",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.3,
      "epss": 0.00228,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91727",
      "url": "https://patchblox.com/security/cve/CVE-2026-91727",
      "title": "Chromium CVE-2026-91727: Incorrect reference resolution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.1,
      "epss": 0.00108,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91714",
      "url": "https://patchblox.com/security/cve/CVE-2026-91714",
      "title": "Chromium CVE-2026-91714: Observable discrepancy",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.3,
      "epss": 0.00237,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91725",
      "url": "https://patchblox.com/security/cve/CVE-2026-91725",
      "title": "Chromium CVE-2026-91725: Observable discrepancy",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.3,
      "epss": 0.00237,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91744",
      "url": "https://patchblox.com/security/cve/CVE-2026-91744",
      "title": "Chromium CVE-2026-91744: Race condition",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.3,
      "epss": 0.00232,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91746",
      "url": "https://patchblox.com/security/cve/CVE-2026-91746",
      "title": "Chromium CVE-2026-91746: Integer overflow",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.3,
      "epss": 0.00228,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91730",
      "url": "https://patchblox.com/security/cve/CVE-2026-91730",
      "title": "Chromium CVE-2026-91730: Incomplete cleanup",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 3.1,
      "epss": 0.00227,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91739",
      "url": "https://patchblox.com/security/cve/CVE-2026-91739",
      "title": "Chromium CVE-2026-91739: Missing authorization",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 4.2,
      "epss": 0.00193,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91713",
      "url": "https://patchblox.com/security/cve/CVE-2026-91713",
      "title": "Chromium CVE-2026-91713: Missing authorization",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 4.2,
      "epss": 0.00192,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91723",
      "url": "https://patchblox.com/security/cve/CVE-2026-91723",
      "title": "Chromium CVE-2026-91723: Race condition",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 4.2,
      "epss": 0.00167,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91708",
      "url": "https://patchblox.com/security/cve/CVE-2026-91708",
      "title": "Chromium CVE-2026-91708: Race condition",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 3.1,
      "epss": 0.00162,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T07:45:43Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}