{
  "fix": "Microsoft Edge Dev 142.0.3558.0",
  "url": "https://patchblox.com/security/fix/windows-app/microsoft.edge.dev-142.0.3558.0",
  "summary": "Microsoft Edge Dev 142.0.3558.0, released September 15, 2025, fixes 12 CVEs in Microsoft Edge Dev. None of them is reported as exploited. Patch Radar priority: High. The latest Microsoft Edge Dev is 159.0.4378.0, which also fixes every one of these CVEs.",
  "platform": "windows-app",
  "type": "app-version",
  "title": "Microsoft Edge Dev 142.0.3558.0",
  "released": "2025-09-15T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2025-11756, high severity",
  "supported": true,
  "cveCount": 12,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00417,
  "maxCvss": 8.8,
  "appliesTo": [
    {
      "product": "Microsoft Edge Dev",
      "productUrl": "https://patchblox.com/security/product/windows-app/microsoft-edge-dev",
      "fixedVersion": "142.0.3558.0",
      "latestVersion": "159.0.4378.0",
      "supported": true
    }
  ],
  "supersededBy": {
    "product": "Microsoft Edge Dev",
    "latestVersion": "159.0.4378.0",
    "productUrl": "https://patchblox.com/security/product/windows-app/microsoft-edge-dev"
  },
  "cves": [
    {
      "cveId": "CVE-2025-11756",
      "url": "https://patchblox.com/security/cve/CVE-2025-11756",
      "title": "Chromium: CVE-2025-11756 Use after free in Safe Browsing",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00417,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-11211",
      "url": "https://patchblox.com/security/cve/CVE-2025-11211",
      "title": "Chromium: CVE-2025-11211 Out of bounds read in Media",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00379,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-11460",
      "url": "https://patchblox.com/security/cve/CVE-2025-11460",
      "title": "Chromium: CVE-2025-11460 Use after free in Storage",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00335,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-11205",
      "url": "https://patchblox.com/security/cve/CVE-2025-11205",
      "title": "Chromium: CVE-2025-11205 Heap buffer overflow in WebGPU",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00321,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-11458",
      "url": "https://patchblox.com/security/cve/CVE-2025-11458",
      "title": "Chromium: CVE-2025-11458 Heap buffer overflow in Sync",
      "priority": "High",
      "severity": "high",
      "cvss": 8.1,
      "epss": 0.00296,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-11206",
      "url": "https://patchblox.com/security/cve/CVE-2025-11206",
      "title": "Chromium: CVE-2025-11206 Heap buffer overflow in Video",
      "priority": "High",
      "severity": "high",
      "cvss": 7.1,
      "epss": 0.00226,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-11219",
      "url": "https://patchblox.com/security/cve/CVE-2025-11219",
      "title": "Chromium: CVE-2025-11219 Use after free in V8",
      "priority": "Routine",
      "severity": "low",
      "cvss": 3.1,
      "epss": 0.00273,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-11207",
      "url": "https://patchblox.com/security/cve/CVE-2025-11207",
      "title": "Chromium: CVE-2025-11207 Side-channel information leakage in Storage",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 6.5,
      "epss": 0.00258,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-11215",
      "url": "https://patchblox.com/security/cve/CVE-2025-11215",
      "title": "Chromium: CVE-2025-11215 Off by one error in V8",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 4.3,
      "epss": 0.00255,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-11210",
      "url": "https://patchblox.com/security/cve/CVE-2025-11210",
      "title": "Chromium: CVE-2025-11210 Side-channel information leakage in Tab",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.4,
      "epss": 0.00233,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-11208",
      "url": "https://patchblox.com/security/cve/CVE-2025-11208",
      "title": "Chromium: CVE-2025-11208 Inappropriate implementation in Media",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 6.3,
      "epss": 0.00227,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-11212",
      "url": "https://patchblox.com/security/cve/CVE-2025-11212",
      "title": "Chromium: CVE-2025-11212 Inappropriate implementation in Media",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 6.3,
      "epss": 0.00211,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-10T13:56:55Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}