{
  "fix": "Mozilla Firefox (en-US) 118.0.1",
  "url": "https://patchblox.com/security/fix/windows-app/mozilla.firefox-118.0.1",
  "summary": "Mozilla Firefox (en-US) 118.0.1, released September 29, 2023, fixes 1 CVE in Mozilla Firefox (en-US). One of them is being exploited (CVE-2023-5217); 1 on CISA KEV. Patch Radar priority: Patch now. The latest Mozilla Firefox (en-US) is 159.0, which also fixes every one of these CVEs.",
  "platform": "windows-app",
  "type": "app-version",
  "title": "Mozilla Firefox (en-US) 118.0.1",
  "released": "2023-09-29T00:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2023-5217, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 1,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 0,
  "maxEpss": 0.49013,
  "maxCvss": 8.8,
  "appliesTo": [
    {
      "product": "Mozilla Firefox (en-US)",
      "productUrl": "https://patchblox.com/security/product/windows-app/mozilla-firefox-en-us",
      "fixedVersion": "118.0.1",
      "latestVersion": "159.0",
      "supported": true
    }
  ],
  "supersededBy": {
    "product": "Mozilla Firefox (en-US)",
    "latestVersion": "159.0",
    "productUrl": "https://patchblox.com/security/product/windows-app/mozilla-firefox-en-us"
  },
  "cves": [
    {
      "cveId": "CVE-2023-5217",
      "url": "https://patchblox.com/security/cve/CVE-2023-5217",
      "title": "Chromium: CVE-2023-5217 Heap buffer overflow in vp8 encoding in libvpx",
      "priority": "Patch now",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.49013,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": true
    }
  ],
  "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"
  }
}