{
  "fix": "firefox 89.0\u002Bbuild2-0ubuntu0.18.04.2",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-89.0-build2-0ubuntu0.18.04.2",
  "summary": "firefox 89.0\u002Bbuild2-0ubuntu0.18.04.2, released June 1, 2021, fixes 5 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 89.0\u002Bbuild2-0ubuntu0.18.04.2 for Ubuntu 18.04.6 LTS (bionic)",
  "released": "2021-06-01T17:00:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2021-29967, rated Critical",
  "supported": false,
  "cveCount": 5,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01368,
  "maxCvss": 8.8,
  "appliesTo": [
    {
      "product": "firefox",
      "productUrl": "https://patchblox.com/security/product/linux/firefox",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "89.0\u002Bbuild2-0ubuntu0.18.04.2",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2021-29967",
      "url": "https://patchblox.com/security/cve/CVE-2021-29967",
      "title": "Firefox ESR and 3 others: Mozilla developers reported memory safety bugs present in Firefox 88 and Firefox ESR 78.11.",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 8.8,
      "epss": 0.01368,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-29966",
      "url": "https://patchblox.com/security/cve/CVE-2021-29966",
      "title": "Mozilla Firefox ESR: Mozilla developers reported memory safety bugs present in Firefox 88.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.8,
      "epss": 0.01022,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-29959",
      "url": "https://patchblox.com/security/cve/CVE-2021-29959",
      "title": "Mozilla Firefox ESR: When a user has already allowed a website to access microphone and camera, disabling camera sharing would\u2026",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 4.3,
      "epss": 0.00839,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-29960",
      "url": "https://patchblox.com/security/cve/CVE-2021-29960",
      "title": "Mozilla Firefox ESR: Firefox used to cache the last filename used for printing a file.",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 4.3,
      "epss": 0.00829,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-29961",
      "url": "https://patchblox.com/security/cve/CVE-2021-29961",
      "title": "Mozilla Firefox ESR: When styling and rendering an oversized \u0060\u003Cselect\u003E\u0060 element, Firefox did not apply correct clipping which\u2026",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 4.3,
      "epss": 0.0076,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-12T13:55:20Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}