{
  "fix": "Microsoft Edge WebView2 Runtime 151.0.4129.101",
  "url": "https://patchblox.com/security/fix/windows-app/microsoft.edgewebview2runtime-151.0.4129.101",
  "summary": "Microsoft Edge WebView2 Runtime 151.0.4129.101, released August 20, 2026, fixes 10 CVEs in Microsoft Edge WebView2 Runtime. None of them is reported as exploited. Patch Radar priority: High. 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 151.0.4129.101",
  "released": "2026-08-20T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-76034, high severity",
  "supported": true,
  "cveCount": 10,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00573,
  "maxCvss": 9.6,
  "appliesTo": [
    {
      "product": "Microsoft Edge WebView2 Runtime",
      "productUrl": "https://patchblox.com/security/product/windows-app/microsoft-edge-webview2-runtime",
      "fixedVersion": "151.0.4129.101",
      "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-2026-76034",
      "url": "https://patchblox.com/security/cve/CVE-2026-76034",
      "title": "Chromium: CVE-2026-76034 Buffer overflow in WebGL",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00573,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-76045",
      "url": "https://patchblox.com/security/cve/CVE-2026-76045",
      "title": "Chromium: CVE-2026-76045 Use after free in WebGL",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00523,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-76038",
      "url": "https://patchblox.com/security/cve/CVE-2026-76038",
      "title": "Chromium: CVE-2026-76038 Type confusion in V8",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00451,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-76047",
      "url": "https://patchblox.com/security/cve/CVE-2026-76047",
      "title": "Chromium: CVE-2026-76047 Type confusion in V8",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00451,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-76043",
      "url": "https://patchblox.com/security/cve/CVE-2026-76043",
      "title": "Chromium: CVE-2026-76043 Incorrect calculation in V8",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00413,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-76041",
      "url": "https://patchblox.com/security/cve/CVE-2026-76041",
      "title": "Chromium: CVE-2026-76041 Information leak in Skia",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 9.6,
      "epss": 0.00348,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-76044",
      "url": "https://patchblox.com/security/cve/CVE-2026-76044",
      "title": "Chromium: CVE-2026-76044 Race condition in USB",
      "priority": "High",
      "severity": "high",
      "cvss": 8.3,
      "epss": 0.00323,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-76037",
      "url": "https://patchblox.com/security/cve/CVE-2026-76037",
      "title": "Chromium: CVE-2026-76037 Link following in CredentialProvider",
      "priority": "High",
      "severity": "high",
      "cvss": 8.4,
      "epss": 0.00146,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-76042",
      "url": "https://patchblox.com/security/cve/CVE-2026-76042",
      "title": "Chromium: CVE-2026-76042 Use of uninitialized resource in GPU",
      "priority": "Routine",
      "severity": "low",
      "cvss": 3.1,
      "epss": 0.00251,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-76033",
      "url": "https://patchblox.com/security/cve/CVE-2026-76033",
      "title": "Chromium: CVE-2026-76033 Inappropriate implementation in CORS",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 4.2,
      "epss": 0.00218,
      "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"
  }
}