{
  "fix": "Mozilla Firefox (en-US) 118.0",
  "url": "https://patchblox.com/security/fix/windows-app/mozilla.firefox-118.0",
  "summary": "Mozilla Firefox (en-US) 118.0, released September 26, 2023, fixes 9 CVEs in Mozilla Firefox (en-US). None of them is reported as exploited. Patch Radar priority: Urgent. 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",
  "released": "2023-09-26T00:00:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2023-5176, rated Critical",
  "supported": true,
  "cveCount": 9,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01388,
  "maxCvss": 9.8,
  "appliesTo": [
    {
      "product": "Mozilla Firefox (en-US)",
      "productUrl": "https://patchblox.com/security/product/windows-app/mozilla-firefox-en-us",
      "fixedVersion": "118.0",
      "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-2023-5176",
      "url": "https://patchblox.com/security/cve/CVE-2023-5176",
      "title": "Mozilla Firefox ESR and 5 others: Out-of-bounds Write",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.8,
      "epss": 0.01388,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-5174",
      "url": "https://patchblox.com/security/cve/CVE-2023-5174",
      "title": "Mozilla Firefox ESR and 5 others: Use After Free",
      "priority": "Urgent",
      "cvss": 9.8,
      "epss": 0.012,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-5168",
      "url": "https://patchblox.com/security/cve/CVE-2023-5168",
      "title": "Mozilla Firefox ESR and 5 others: Out-of-bounds Write",
      "priority": "Urgent",
      "cvss": 9.8,
      "epss": 0.01116,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-5175",
      "url": "https://patchblox.com/security/cve/CVE-2023-5175",
      "title": "Mozilla Firefox ESR and 3 others: Use After Free",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.8,
      "epss": 0.01038,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-5172",
      "url": "https://patchblox.com/security/cve/CVE-2023-5172",
      "title": "Mozilla Firefox ESR and 3 others: Use After Free",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.8,
      "epss": 0.01009,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-5173",
      "url": "https://patchblox.com/security/cve/CVE-2023-5173",
      "title": "Mozilla Firefox ESR and 3 others: In a non-standard configuration of Firefox, an integer overflow could have occurred based on network\u2026",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.5,
      "epss": 0.00911,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-5170",
      "url": "https://patchblox.com/security/cve/CVE-2023-5170",
      "title": "Mozilla Firefox ESR and 3 others: In canvas rendering, a compromised content process could have caused a surface to change unexpectedly,\u2026",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.4,
      "epss": 0.00718,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-5171",
      "url": "https://patchblox.com/security/cve/CVE-2023-5171",
      "title": "Mozilla Firefox ESR and 5 others: During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing\u2026",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 6.5,
      "epss": 0.01116,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-5169",
      "url": "https://patchblox.com/security/cve/CVE-2023-5169",
      "title": "Mozilla Firefox ESR and 5 others: A compromised content process could have provided malicious data in a \u0060PathRecording\u0060 resulting in an\u2026",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 6.5,
      "epss": 0.01095,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}