{
  "fix": "Microsoft Edge WebView2 Runtime 144.0.3719.82",
  "url": "https://patchblox.com/security/fix/windows-app/microsoft.edgewebview2runtime-144.0.3719.82",
  "summary": "Microsoft Edge WebView2 Runtime 144.0.3719.82, released January 16, 2026, fixes 11 CVEs in Microsoft Edge WebView2 Runtime. None of them is reported as exploited. Patch Radar priority: Urgent. The latest Microsoft Edge WebView2 Runtime is 157.0.4341.42, which also fixes every one of these CVEs.",
  "platform": "windows-app",
  "type": "app-version",
  "title": "Microsoft Edge WebView2 Runtime 144.0.3719.82",
  "released": "2026-01-16T00:00:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-0907, rated Critical",
  "supported": true,
  "cveCount": 11,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.08815,
  "maxCvss": 9.8,
  "appliesTo": [
    {
      "product": "Microsoft Edge WebView2 Runtime",
      "productUrl": "https://patchblox.com/security/product/windows-app/microsoft-edge-webview2-runtime",
      "fixedVersion": "144.0.3719.82",
      "latestVersion": "157.0.4341.42",
      "supported": true
    }
  ],
  "supersededBy": {
    "product": "Microsoft Edge WebView2 Runtime",
    "latestVersion": "157.0.4341.42",
    "productUrl": "https://patchblox.com/security/product/windows-app/microsoft-edge-webview2-runtime"
  },
  "cves": [
    {
      "cveId": "CVE-2026-0907",
      "url": "https://patchblox.com/security/cve/CVE-2026-0907",
      "title": "Chromium: CVE-2026-0907 Incorrect security UI in Split View",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.8,
      "epss": 0.08815,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-0906",
      "url": "https://patchblox.com/security/cve/CVE-2026-0906",
      "title": "Chromium: CVE-2026-0906 Incorrect security UI",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.8,
      "epss": 0.00355,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-0908",
      "url": "https://patchblox.com/security/cve/CVE-2026-0908",
      "title": "Chromium: CVE-2026-0908 Use after free in ANGLE",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 9.6,
      "epss": 0.00321,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-0905",
      "url": "https://patchblox.com/security/cve/CVE-2026-0905",
      "title": "Chromium: CVE-2026-0905 Insufficient policy enforcement in Network",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.8,
      "epss": 0.0025,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-0899",
      "url": "https://patchblox.com/security/cve/CVE-2026-0899",
      "title": "Chromium: CVE-2026-0899 Out of bounds memory access in V8",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00412,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-0900",
      "url": "https://patchblox.com/security/cve/CVE-2026-0900",
      "title": "Chromium: CVE-2026-0900 Inappropriate implementation in V8",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00349,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-0902",
      "url": "https://patchblox.com/security/cve/CVE-2026-0902",
      "title": "Chromium: CVE-2026-0902 Inappropriate implementation in V8",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00298,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-21223",
      "url": "https://patchblox.com/security/cve/CVE-2026-21223",
      "title": "Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability",
      "priority": "High",
      "cvss": 7.1,
      "epss": 0.00272,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-0901",
      "url": "https://patchblox.com/security/cve/CVE-2026-0901",
      "title": "Chromium: CVE-2026-0901 Inappropriate implementation in Blink",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.4,
      "epss": 0.00216,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-0903",
      "url": "https://patchblox.com/security/cve/CVE-2026-0903",
      "title": "Chromium: CVE-2026-0903 Insufficient validation of untrusted input in Downloads",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.4,
      "epss": 0.00205,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-0904",
      "url": "https://patchblox.com/security/cve/CVE-2026-0904",
      "title": "Chromium: CVE-2026-0904 Incorrect security UI in Digital Credentials",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.4,
      "epss": 0.00194,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T07:45:43Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}