{
  "fix": "Microsoft Edge Dev 133.0.2992.0",
  "url": "https://patchblox.com/security/fix/windows-app/microsoft.edge.dev-133.0.2992.0",
  "summary": "Microsoft Edge Dev 133.0.2992.0, released December 2, 2024, fixes 17 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 133.0.2992.0",
  "released": "2024-12-02T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2025-0434, high severity",
  "supported": true,
  "cveCount": 17,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.05956,
  "maxCvss": 9.6,
  "appliesTo": [
    {
      "product": "Microsoft Edge Dev",
      "productUrl": "https://patchblox.com/security/product/windows-app/microsoft-edge-dev",
      "fixedVersion": "133.0.2992.0",
      "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-2025-0434",
      "url": "https://patchblox.com/security/cve/CVE-2025-0434",
      "title": "Chromium: CVE-2025-0434 Out of bounds memory access in V8",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.05956,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0436",
      "url": "https://patchblox.com/security/cve/CVE-2025-0436",
      "title": "Chromium: CVE-2025-0436 Integer overflow in Skia",
      "priority": "High",
      "severity": "high",
      "cvss": 9.6,
      "epss": 0.0058,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0612",
      "url": "https://patchblox.com/security/cve/CVE-2025-0612",
      "title": "Chromium: CVE-2025-0611 Object corruption in V8",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.0048,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0438",
      "url": "https://patchblox.com/security/cve/CVE-2025-0438",
      "title": "Chromium: CVE-2025-0438 Stack buffer overflow in Tracing",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00455,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0443",
      "url": "https://patchblox.com/security/cve/CVE-2025-0443",
      "title": "Chromium: CVE-2025-0443 Insufficient data validation in Extensions",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00447,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0447",
      "url": "https://patchblox.com/security/cve/CVE-2025-0447",
      "title": "Chromium: CVE-2025-0447 Inappropriate implementation in Navigation",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00447,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0611",
      "url": "https://patchblox.com/security/cve/CVE-2025-0611",
      "title": "Chromium: CVE-2025-0612 Out of bounds memory access in V8",
      "priority": "High",
      "severity": "high",
      "cvss": 8.2,
      "epss": 0.00412,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0762",
      "url": "https://patchblox.com/security/cve/CVE-2025-0762",
      "title": "Chromium: CVE-2025-0762 Use after free in DevTools",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.0034,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0437",
      "url": "https://patchblox.com/security/cve/CVE-2025-0437",
      "title": "Chromium: CVE-2025-0437 Out of bounds read in Metrics",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00295,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21185",
      "url": "https://patchblox.com/security/cve/CVE-2025-21185",
      "title": "Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.00831,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0440",
      "url": "https://patchblox.com/security/cve/CVE-2025-0440",
      "title": "Chromium: CVE-2025-0440 Inappropriate implementation in Fullscreen",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 6.5,
      "epss": 0.00415,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-21262",
      "url": "https://patchblox.com/security/cve/CVE-2025-21262",
      "title": "Microsoft Edge (Chromium-based) Spoofing Vulnerability",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 5.4,
      "epss": 0.00383,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0441",
      "url": "https://patchblox.com/security/cve/CVE-2025-0441",
      "title": "Chromium: CVE-2025-0441 Inappropriate implementation in Fenced Frames",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 6.5,
      "epss": 0.00371,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0442",
      "url": "https://patchblox.com/security/cve/CVE-2025-0442",
      "title": "Chromium: CVE-2025-0442 Inappropriate implementation in Payments",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 6.5,
      "epss": 0.0033,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0448",
      "url": "https://patchblox.com/security/cve/CVE-2025-0448",
      "title": "Chromium: CVE-2025-0448 Inappropriate implementation in Compositing",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 4.3,
      "epss": 0.00291,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0446",
      "url": "https://patchblox.com/security/cve/CVE-2025-0446",
      "title": "Chromium: CVE-2025-0446 Inappropriate implementation in Extensions",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 4.3,
      "epss": 0.00273,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-0439",
      "url": "https://patchblox.com/security/cve/CVE-2025-0439",
      "title": "Chromium: CVE-2025-0439 Race in Frames",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 6.5,
      "epss": 0.00271,
      "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"
  }
}