{
  "fix": "Microsoft Edge Dev 141.0.3500.1",
  "url": "https://patchblox.com/security/fix/windows-app/microsoft.edge.dev-141.0.3500.1",
  "summary": "Microsoft Edge Dev 141.0.3500.1, released August 19, 2025, fixes 12 CVEs in Microsoft Edge Dev. One of them is being exploited (CVE-2025-10585); 1 on CISA KEV. Patch Radar priority: Patch now. 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 141.0.3500.1",
  "released": "2025-08-19T00:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2025-10585, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 12,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 0,
  "maxEpss": 0.08974,
  "maxCvss": 9.8,
  "appliesTo": [
    {
      "product": "Microsoft Edge Dev",
      "productUrl": "https://patchblox.com/security/product/windows-app/microsoft-edge-dev",
      "fixedVersion": "141.0.3500.1",
      "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-2025-10585",
      "url": "https://patchblox.com/security/cve/CVE-2025-10585",
      "title": "Chromium: CVE-2025-10585 Type Confusion in V8",
      "priority": "Patch now",
      "severity": "critical",
      "cvss": 9.8,
      "epss": 0.08974,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-10890",
      "url": "https://patchblox.com/security/cve/CVE-2025-10890",
      "title": "Chromium: CVE-2025-10890 Side-channel information leakage in V8",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.1,
      "epss": 0.00372,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-10891",
      "url": "https://patchblox.com/security/cve/CVE-2025-10891",
      "title": "Chromium: CVE-2025-10891 Integer overflow in V8",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.08683,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-10200",
      "url": "https://patchblox.com/security/cve/CVE-2025-10200",
      "title": "Chromium: CVE-2025-10200 Use after free in Serviceworker",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00643,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-59251",
      "url": "https://patchblox.com/security/cve/CVE-2025-59251",
      "title": "Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.6,
      "epss": 0.00526,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-9866",
      "url": "https://patchblox.com/security/cve/CVE-2025-9866",
      "title": "Chromium: CVE-2025-9866 Inappropriate implementation in Extensions",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00507,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-10501",
      "url": "https://patchblox.com/security/cve/CVE-2025-10501",
      "title": "Chromium: CVE-2025-10501 Use after free in WebRTC",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00338,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-10500",
      "url": "https://patchblox.com/security/cve/CVE-2025-10500",
      "title": "Chromium: CVE-2025-10500 Use after free in Dawn",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-10892",
      "url": "https://patchblox.com/security/cve/CVE-2025-10892",
      "title": "Chromium: CVE-2025-10892 Integer overflow in V8",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00289,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-10502",
      "url": "https://patchblox.com/security/cve/CVE-2025-10502",
      "title": "Chromium: CVE-2025-10502 Heap buffer overflow in ANGLE",
      "priority": "High",
      "severity": "high",
      "cvss": 9.6,
      "epss": 0.00283,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-53791",
      "url": "https://patchblox.com/security/cve/CVE-2025-53791",
      "title": "Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 4.7,
      "epss": 0.0041,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-47967",
      "url": "https://patchblox.com/security/cve/CVE-2025-47967",
      "title": "Microsoft Edge (Chromium-based) for Android Spoofing Vulnerability",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 4.7,
      "epss": 0.00384,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-10T20:03:11Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}