{
  "fix": "firefox 66.0\u002Bbuild3-0ubuntu0.18.04.1",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-66.0-build3-0ubuntu0.18.04.1",
  "summary": "firefox 66.0\u002Bbuild3-0ubuntu0.18.04.1, released March 19, 2019, fixes 17 CVEs in firefox. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.",
  "platform": "linux",
  "type": "package",
  "title": "firefox 66.0\u002Bbuild3-0ubuntu0.18.04.1 for Ubuntu 18.04.6 LTS (bionic)",
  "released": "2019-03-19T17:00:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2019-9791, rated Critical",
  "supported": false,
  "cveCount": 17,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.19915,
  "maxCvss": 9.8,
  "appliesTo": [
    {
      "product": "firefox",
      "productUrl": "https://patchblox.com/security/product/linux/firefox",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "66.0\u002Bbuild3-0ubuntu0.18.04.1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2019-9791",
      "url": "https://patchblox.com/security/cve/CVE-2019-9791",
      "title": "firefox: ELSA-2019-0966: firefox security update (CRITICAL)",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 9.8,
      "epss": 0.19915,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9792",
      "url": "https://patchblox.com/security/cve/CVE-2019-9792",
      "title": "firefox: ELSA-2019-0966: firefox security update (CRITICAL)",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 9.8,
      "epss": 0.13303,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9788",
      "url": "https://patchblox.com/security/cve/CVE-2019-9788",
      "title": "firefox: ELSA-2019-0966: firefox security update (CRITICAL)",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 9.8,
      "epss": 0.02244,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9796",
      "url": "https://patchblox.com/security/cve/CVE-2019-9796",
      "title": "firefox: ELSA-2019-0966: firefox security update (CRITICAL)",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 9.8,
      "epss": 0.0206,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9790",
      "url": "https://patchblox.com/security/cve/CVE-2019-9790",
      "title": "firefox: ELSA-2019-0966: firefox security update (CRITICAL)",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 9.8,
      "epss": 0.01853,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9795",
      "url": "https://patchblox.com/security/cve/CVE-2019-9795",
      "title": "firefox: ELSA-2019-0966: firefox security update (CRITICAL)",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 9.8,
      "epss": 0.01699,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9793",
      "url": "https://patchblox.com/security/cve/CVE-2019-9793",
      "title": "firefox: ELSA-2019-0966: firefox security update (CRITICAL)",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 5.9,
      "epss": 0.0163,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9797",
      "url": "https://patchblox.com/security/cve/CVE-2019-9797",
      "title": "firefox: ELSA-2019-1269: firefox security update (CRITICAL)",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 5.3,
      "epss": 0.01109,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9809",
      "url": "https://patchblox.com/security/cve/CVE-2019-9809",
      "title": "firefox: If the source for resources on a page is through an FTP connection, it is possible to trigger a series of modal alert...",
      "priority": "Routine",
      "severity": "Low",
      "epss": 0.01641,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9805",
      "url": "https://patchblox.com/security/cve/CVE-2019-9805",
      "title": "firefox: A latent vulnerability exists in the Prio library where data may be read from uninitialized memory for some functions...",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.01357,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9789",
      "url": "https://patchblox.com/security/cve/CVE-2019-9789",
      "title": "firefox: Mozilla developers and community members reported memory safety bugs present in Firefox 65",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.01215,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9802",
      "url": "https://patchblox.com/security/cve/CVE-2019-9802",
      "title": "firefox: If a Sandbox content process is compromised, it can initiate an FTP download which will then use a child process to r...",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.01127,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9799",
      "url": "https://patchblox.com/security/cve/CVE-2019-9799",
      "title": "firefox: Insufficient bounds checking of data during inter-process communication might allow a compromised content process to...",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.01119,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9806",
      "url": "https://patchblox.com/security/cve/CVE-2019-9806",
      "title": "firefox: A vulnerability exists during authorization prompting for FTP transaction where successive modal prompts are displaye...",
      "priority": "Routine",
      "severity": "Low",
      "epss": 0.01081,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9807",
      "url": "https://patchblox.com/security/cve/CVE-2019-9807",
      "title": "firefox: When arbitrary text is sent over an FTP connection and a page reload is initiated, it is possible to create a modal a...",
      "priority": "Routine",
      "severity": "Low",
      "epss": 0.00787,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9803",
      "url": "https://patchblox.com/security/cve/CVE-2019-9803",
      "title": "firefox: The Upgrade-Insecure-Requests (UIR) specification states that if UIR is enabled through Content Security Policy (CSP)...",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.00559,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2019-9808",
      "url": "https://patchblox.com/security/cve/CVE-2019-9808",
      "title": "firefox: If WebRTC permission is requested from documents with data: or blob: URLs, the permission notifications do not proper...",
      "priority": "Routine",
      "severity": "Low",
      "epss": 0.00397,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-12T07:53:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}