{
  "fix": "Mozilla Firefox (en-US) 111.0",
  "url": "https://patchblox.com/security/fix/windows-app/mozilla.firefox-111.0",
  "summary": "Mozilla Firefox (en-US) 111.0, released March 16, 2023, fixes 11 CVEs in Mozilla Firefox (en-US). None of them is reported as exploited. Patch Radar priority: High. 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) 111.0",
  "released": "2023-03-16T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2023-28176, high severity",
  "supported": true,
  "cveCount": 11,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00798,
  "maxCvss": 8.8,
  "appliesTo": [
    {
      "product": "Mozilla Firefox (en-US)",
      "productUrl": "https://patchblox.com/security/product/windows-app/mozilla-firefox-en-us",
      "fixedVersion": "111.0",
      "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-2023-28176",
      "url": "https://patchblox.com/security/cve/CVE-2023-28176",
      "title": "Mozilla Firefox and 4 others: Out-of-bounds Write",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00719,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-28162",
      "url": "https://patchblox.com/security/cve/CVE-2023-28162",
      "title": "Mozilla Firefox and 4 others: Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00702,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-25751",
      "url": "https://patchblox.com/security/cve/CVE-2023-25751",
      "title": "Mozilla Firefox and 4 others: Sometimes, when invalidating JIT code while following an iterator, the newly generated code could be\u2026",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.0069,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-28161",
      "url": "https://patchblox.com/security/cve/CVE-2023-28161",
      "title": "Mozilla Firefox and 2 others: Improper Preservation of Permissions",
      "priority": "High",
      "severity": "Low",
      "cvss": 8.8,
      "epss": 0.00624,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-25752",
      "url": "https://patchblox.com/security/cve/CVE-2023-25752",
      "title": "Mozilla Firefox and 4 others: When accessing throttled streams, the count of available bytes needed to be checked in the calling function\u2026",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.0061,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-28177",
      "url": "https://patchblox.com/security/cve/CVE-2023-28177",
      "title": "Mozilla Firefox and 2 others: Out-of-bounds Write",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.8,
      "epss": 0.00545,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-28164",
      "url": "https://patchblox.com/security/cve/CVE-2023-28164",
      "title": "Mozilla Firefox and 4 others: Origin Validation Error",
      "priority": "High",
      "severity": "medium",
      "cvss": 7.5,
      "epss": 0.00347,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-28163",
      "url": "https://patchblox.com/security/cve/CVE-2023-28163",
      "title": "Mozilla Firefox and 4 others: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
      "priority": "Routine",
      "cvss": 6.5,
      "epss": 0.00798,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-28160",
      "url": "https://patchblox.com/security/cve/CVE-2023-28160",
      "title": "Mozilla Firefox and 2 others: Direct Request (\u0027Forced Browsing\u0027)",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 6.5,
      "epss": 0.00508,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-25750",
      "url": "https://patchblox.com/security/cve/CVE-2023-25750",
      "title": "Mozilla Firefox and 2 others: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 4.3,
      "epss": 0.00456,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-28159",
      "url": "https://patchblox.com/security/cve/CVE-2023-28159",
      "title": "Mozilla Firefox and 2 others: Improper Restriction of Rendered UI Layers or Frames",
      "priority": "Routine",
      "cvss": 4.3,
      "epss": 0.00348,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}