{
  "fix": "Microsoft Edge Dev 139.0.3405.13",
  "url": "https://patchblox.com/security/fix/windows-app/microsoft.edge.dev-139.0.3405.13",
  "summary": "Microsoft Edge Dev 139.0.3405.13, released July 3, 2025, fixes 6 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 139.0.3405.13",
  "released": "2025-07-03T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-87612, high severity",
  "supported": true,
  "cveCount": 6,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00451,
  "maxCvss": 8.8,
  "appliesTo": [
    {
      "product": "Microsoft Edge Dev",
      "productUrl": "https://patchblox.com/security/product/windows-app/microsoft-edge-dev",
      "fixedVersion": "139.0.3405.13",
      "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-2026-87612",
      "url": "https://patchblox.com/security/cve/CVE-2026-87612",
      "title": "Type confusion in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00451,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87587",
      "url": "https://patchblox.com/security/cve/CVE-2026-87587",
      "title": "Use after free in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00413,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87625",
      "url": "https://patchblox.com/security/cve/CVE-2026-87625",
      "title": "Use after free in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to execute arbitrary code inside the sandbox via a crafted Chrome extension. (Chromium security severity: Medium)",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00382,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87601",
      "url": "https://patchblox.com/security/cve/CVE-2026-87601",
      "title": "Race condition in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.5,
      "epss": 0.00289,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87564",
      "url": "https://patchblox.com/security/cve/CVE-2026-87564",
      "title": "Type confusion in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to read memory inside the sandbox via a crafted HTML page. (Chromium security severity: High)",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 4.3,
      "epss": 0.00282,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-113196",
      "url": "https://patchblox.com/security/cve/CVE-2026-113196",
      "title": "Chromium CVE-2026-113196: Improper access control",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 6.5,
      "epss": 0.0026,
      "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"
  }
}