{
  "cveId": "CVE-2020-26969",
  "url": "https://patchblox.com/security/cve/CVE-2020-26969",
  "summary": "CVE-2020-26969 is fixed in 4 products on 2 platforms, first by firefox 83.0\u002Bbuild2-0ubuntu0.18.04.2, released November 16, 2020. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Firefox ESR and 1 other: Mozilla developers reported memory safety bugs present in Firefox 82.",
  "description": "Mozilla developers reported memory safety bugs present in Firefox 82. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox \u003C 83.",
  "published": "2020-11-16T16:00:00Z",
  "severity": "Medium",
  "cvss": 8.8,
  "epss": 0.01215,
  "epssPercentile": 0.68739,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2020-26969",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "Mozilla Firefox ESR (en-US)",
      "fixedVersion": "91.0",
      "fix": "Mozilla Firefox ESR (en-US) 91.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.firefox.esr-91.0",
      "released": "2021-08-04T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "83.0\u002Bbuild2-0ubuntu0.18.04.2",
      "fix": "firefox 83.0\u002Bbuild2-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-83.0-build2-0ubuntu0.18.04.2",
      "released": "2020-11-16T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "83.0\u002Bbuild2-0ubuntu0.20.04.1",
      "fix": "firefox 83.0\u002Bbuild2-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-83.0-build2-0ubuntu0.20.04.1",
      "released": "2020-11-16T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-geckodriver",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "83.0\u002Bbuild2-0ubuntu0.18.04.2",
      "fix": "firefox-geckodriver 83.0\u002Bbuild2-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-geckodriver-83.0-build2-0ubuntu0.18.04.2",
      "released": "2020-11-16T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-geckodriver",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "83.0\u002Bbuild2-0ubuntu0.20.04.1",
      "fix": "firefox-geckodriver 83.0\u002Bbuild2-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-geckodriver-83.0-build2-0ubuntu0.20.04.1",
      "released": "2020-11-16T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "83.0\u002Bbuild2-0ubuntu0.18.04.2",
      "fix": "firefox-mozsymbols 83.0\u002Bbuild2-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-mozsymbols-83.0-build2-0ubuntu0.18.04.2",
      "released": "2020-11-16T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "83.0\u002Bbuild2-0ubuntu0.20.04.1",
      "fix": "firefox-mozsymbols 83.0\u002Bbuild2-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-mozsymbols-83.0-build2-0ubuntu0.20.04.1",
      "released": "2020-11-16T16:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}