{
  "fix": "Microsoft Edge 152.0.4191.66",
  "url": "https://patchblox.com/security/fix/macos/com.microsoft.edgemac-152.0.4191.66",
  "summary": "Microsoft Edge 152.0.4191.66, released September 4, 2026, fixes 9 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 152.0.4191.66",
  "released": "2026-09-04T14:36:04Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-85042, rated Critical",
  "supported": true,
  "cveCount": 9,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00462,
  "maxCvss": 9.6,
  "appliesTo": [
    {
      "product": "Microsoft Edge",
      "productUrl": "https://patchblox.com/security/product/macos/microsoft-edge",
      "fixedVersion": "152.0.4191.66",
      "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-2026-85042",
      "url": "https://patchblox.com/security/cve/CVE-2026-85042",
      "title": "Chromium CVE-2026-85042:  Use after free in DevTools",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00462,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-85043",
      "url": "https://patchblox.com/security/cve/CVE-2026-85043",
      "title": "Chromium CVE-2026-85043:  Incomplete cleanup in Network",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.1,
      "epss": 0.00441,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-85051",
      "url": "https://patchblox.com/security/cve/CVE-2026-85051",
      "title": "Chromium CVE-2026-85051:  Type confusion in Compositing",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00451,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-85053",
      "url": "https://patchblox.com/security/cve/CVE-2026-85053",
      "title": "Chromium CVE-2026-85053:  Improper resource exposure in CacheStorage",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00413,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-85048",
      "url": "https://patchblox.com/security/cve/CVE-2026-85048",
      "title": "Chromium CVE-2026-85048:  Use after free in Compositing",
      "priority": "High",
      "severity": "high",
      "cvss": 8.3,
      "epss": 0.00404,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-85049",
      "url": "https://patchblox.com/security/cve/CVE-2026-85049",
      "title": "Chromium CVE-2026-85049:  Use after free in Skia",
      "priority": "High",
      "severity": "high",
      "cvss": 9.6,
      "epss": 0.00283,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-85045",
      "url": "https://patchblox.com/security/cve/CVE-2026-85045",
      "title": "Chromium CVE-2026-85045:  Race condition in V8",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00217,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-85892",
      "url": "https://patchblox.com/security/cve/CVE-2026-85892",
      "title": "Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00202,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-85052",
      "url": "https://patchblox.com/security/cve/CVE-2026-85052",
      "title": "Chromium CVE-2026-85052:  Out of bounds read in CrashReporting",
      "priority": "Routine",
      "severity": "low",
      "cvss": 3.1,
      "epss": 0.0023,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T01:43:54Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}