{
  "fix": "thunderbird 1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-1-78.8.1-build1-0ubuntu0.18.04.1",
  "summary": "thunderbird 1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1, released April 22, 2021, fixes 56 CVEs in thunderbird. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.",
  "platform": "linux",
  "type": "package",
  "title": "thunderbird 1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1 for Ubuntu 18.04.6 LTS (bionic)",
  "released": "2021-04-22T07:54:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2020-26950, rated Critical",
  "supported": false,
  "cveCount": 56,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.42327,
  "maxCvss": 9.8,
  "appliesTo": [
    {
      "product": "thunderbird",
      "productUrl": "https://patchblox.com/security/product/linux/thunderbird",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2020-26950",
      "url": "https://patchblox.com/security/cve/CVE-2020-26950",
      "title": "Firefox ESR and 2 others: In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting\u2026",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 8.8,
      "epss": 0.42327,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23978",
      "url": "https://patchblox.com/security/cve/CVE-2021-23978",
      "title": "Firefox ESR and 2 others: Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7.",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 8.8,
      "epss": 0.0153,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23973",
      "url": "https://patchblox.com/security/cve/CVE-2021-23973",
      "title": "Firefox ESR and 2 others: When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted,\u2026",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 6.5,
      "epss": 0.01368,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-16044",
      "url": "https://patchblox.com/security/cve/CVE-2020-16044",
      "title": "Chromium CVE-2020-16044: Use after free in WebRTC",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 8.8,
      "epss": 0.0132,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23968",
      "url": "https://patchblox.com/security/cve/CVE-2021-23968",
      "title": "Firefox ESR and 2 others: If Content Security Policy blocked frame navigation, the full destination of a redirect served in the\u2026",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 4.3,
      "epss": 0.01307,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23969",
      "url": "https://patchblox.com/security/cve/CVE-2021-23969",
      "title": "Firefox ESR and 2 others: As specified in the W3C Content Security Policy draft, when creating a violation report, \u0022User agents\u2026",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 4.3,
      "epss": 0.01212,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-6463",
      "url": "https://patchblox.com/security/cve/CVE-2020-6463",
      "title": "firefox: ELSA-2020-3241: firefox security update (IMPORTANT)",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.03265,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15683",
      "url": "https://patchblox.com/security/cve/CVE-2020-15683",
      "title": "Firefox ESR and 2 others: Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox\u2026",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 9.8,
      "epss": 0.02674,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15659",
      "url": "https://patchblox.com/security/cve/CVE-2020-15659",
      "title": "Firefox ESR and 2 others: Mozilla developers and community members reported memory safety bugs present in Firefox 78 and Firefox\u2026",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.02391,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15673",
      "url": "https://patchblox.com/security/cve/CVE-2020-15673",
      "title": "Firefox ESR and 2 others: Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2.",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01961,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-12422",
      "url": "https://patchblox.com/security/cve/CVE-2020-12422",
      "title": "Firefox ESR: In non-standard configurations, a JPEG image created by JavaScript could have caused an internal variable\u2026",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01938,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26971",
      "url": "https://patchblox.com/security/cve/CVE-2020-26971",
      "title": "Firefox ESR and 2 others: Certain blit values provided by the user were not properly constrained leading to a heap buffer overflow\u2026",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01899,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15678",
      "url": "https://patchblox.com/security/cve/CVE-2020-15678",
      "title": "Firefox ESR and 2 others: When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting\u2026",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01882,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15969",
      "url": "https://patchblox.com/security/cve/CVE-2020-15969",
      "title": "firefox: ELSA-2020-4317: firefox security update (IMPORTANT)",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.0174,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26973",
      "url": "https://patchblox.com/security/cve/CVE-2020-26973",
      "title": "Firefox ESR and 2 others: Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed.",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01623,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-12426",
      "url": "https://patchblox.com/security/cve/CVE-2020-12426",
      "title": "Firefox ESR: Mozilla developers and community members reported memory safety bugs present in Firefox 77.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.8,
      "epss": 0.01609,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-35113",
      "url": "https://patchblox.com/security/cve/CVE-2020-35113",
      "title": "Firefox ESR and 2 others: Mozilla developers reported memory safety bugs present in Firefox 83 and Firefox ESR 78.5.",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01572,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26960",
      "url": "https://patchblox.com/security/cve/CVE-2020-26960",
      "title": "Firefox ESR and 2 others: If the Compact() method was called on an nsTArray, the array could have been reallocated without updating\u2026",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01563,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26974",
      "url": "https://patchblox.com/security/cve/CVE-2020-26974",
      "title": "Firefox ESR and 2 others: When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly\u2026",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01533,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15656",
      "url": "https://patchblox.com/security/cve/CVE-2020-15656",
      "title": "Firefox ESR and 2 others: JIT optimizations involving the Javascript arguments object could confuse later optimizations.",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01523,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26968",
      "url": "https://patchblox.com/security/cve/CVE-2020-26968",
      "title": "Firefox ESR and 2 others: Mozilla developers reported memory safety bugs present in Firefox 82 and Firefox ESR 78.4.",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01514,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23964",
      "url": "https://patchblox.com/security/cve/CVE-2021-23964",
      "title": "Firefox ESR and 2 others: Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6.",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01361,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-12416",
      "url": "https://patchblox.com/security/cve/CVE-2020-12416",
      "title": "Firefox ESR: A VideoStreamEncoder may have been freed in a race condition with VideoBroadcaster::AddOrUpdateSink,\u2026",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.8,
      "epss": 0.0135,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26959",
      "url": "https://patchblox.com/security/cve/CVE-2020-26959",
      "title": "Firefox ESR and 2 others: During browser shutdown, reference decrementing could have occured on a previously freed object, resulting\u2026",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01297,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23960",
      "url": "https://patchblox.com/security/cve/CVE-2021-23960",
      "title": "Firefox ESR and 2 others: Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and\u2026",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01289,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26970",
      "url": "https://patchblox.com/security/cve/CVE-2020-26970",
      "title": "Thunderbird: When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack\u2026",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01247,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23954",
      "url": "https://patchblox.com/security/cve/CVE-2021-23954",
      "title": "Firefox ESR and 2 others: Using the new logical assignment operators in a JavaScript switch statement could have caused a type\u2026",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01186,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15669",
      "url": "https://patchblox.com/security/cve/CVE-2020-15669",
      "title": "firefox: ELSA-2020-3557: firefox security update (IMPORTANT)",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.01119,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15670",
      "url": "https://patchblox.com/security/cve/CVE-2020-15670",
      "title": "Firefox ESR and 2 others: Mozilla developers reported memory safety bugs present in Firefox for Android 79.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.8,
      "epss": 0.01071,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15685",
      "url": "https://patchblox.com/security/cve/CVE-2020-15685",
      "title": "Thunderbird: Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.00881,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-29950",
      "url": "https://patchblox.com/security/cve/CVE-2021-29950",
      "title": "Thunderbird: Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import\u2026",
      "priority": "High",
      "severity": "Low",
      "cvss": 7.5,
      "epss": 0.00853,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-6514",
      "url": "https://patchblox.com/security/cve/CVE-2020-6514",
      "title": "chromium-browser-l10n: Inappropriate implementation in WebRTC in Google Chrome prior to 84.0.4147.89 allowed an attacker in a privileged net...",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 6.5,
      "epss": 0.0779,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-16012",
      "url": "https://patchblox.com/security/cve/CVE-2020-16012",
      "title": "Firefox ESR and 1 other: Side-channel information leakage in graphics in Google Chrome prior to 87.0.4280.66 allowed a remote\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 4.3,
      "epss": 0.02571,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15677",
      "url": "https://patchblox.com/security/cve/CVE-2020-15677",
      "title": "Firefox ESR and 2 others: By exploiting an Open Redirect vulnerability on a website, an attacker could have spoofed the site displayed\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.1,
      "epss": 0.01657,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26976",
      "url": "https://patchblox.com/security/cve/CVE-2020-26976",
      "title": "Firefox ESR and 1 other: When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former,\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.01639,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-12424",
      "url": "https://patchblox.com/security/cve/CVE-2020-12424",
      "title": "Firefox ESR: When constructing a permission prompt for WebRTC, a URI was supplied from the content process.",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.01607,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15676",
      "url": "https://patchblox.com/security/cve/CVE-2020-15676",
      "title": "Firefox ESR and 2 others: Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.1,
      "epss": 0.01594,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-12425",
      "url": "https://patchblox.com/security/cve/CVE-2020-12425",
      "title": "Firefox ESR: Due to confusion processing a hyphen character in Date.parse(), a one-byte out of bounds read could have\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.01573,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15655",
      "url": "https://patchblox.com/security/cve/CVE-2020-15655",
      "title": "Firefox ESR and 2 others: A redirected HTTP request which is observed or modified through a web extension could bypass existing\u2026",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 6.5,
      "epss": 0.0152,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-35111",
      "url": "https://patchblox.com/security/cve/CVE-2020-35111",
      "title": "Firefox ESR and 2 others: When an extension with the proxy permission registered to receive \u003Call_urls\u003E, the proxy.onRequest callback\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 4.3,
      "epss": 0.01432,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15654",
      "url": "https://patchblox.com/security/cve/CVE-2020-15654",
      "title": "Firefox ESR and 2 others: When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.01423,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15653",
      "url": "https://patchblox.com/security/cve/CVE-2020-15653",
      "title": "Firefox ESR and 2 others: An iframe sandbox element with the allow-popups flag could be bypassed when using noopener links.",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.01397,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15664",
      "url": "https://patchblox.com/security/cve/CVE-2020-15664",
      "title": "Firefox ESR and 2 others: By holding a reference to the eval() function from an about:blank window, a malicious webpage could have\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.01389,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15658",
      "url": "https://patchblox.com/security/cve/CVE-2020-15658",
      "title": "Firefox ESR and 2 others: The code for downloading files did not properly take care of special characters, which led to an attacker\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.01388,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26958",
      "url": "https://patchblox.com/security/cve/CVE-2020-26958",
      "title": "Firefox ESR and 2 others: Firefox did not block execution of scripts with incorrect MIME types when the response was intercepted\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.1,
      "epss": 0.01364,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26978",
      "url": "https://patchblox.com/security/cve/CVE-2020-26978",
      "title": "Firefox ESR and 2 others: Using techniques that built on the slipstream research, a malicious webpage could have exposed both an\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.1,
      "epss": 0.01334,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26953",
      "url": "https://patchblox.com/security/cve/CVE-2020-26953",
      "title": "Firefox ESR and 2 others: It was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 4.3,
      "epss": 0.01293,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-12415",
      "url": "https://patchblox.com/security/cve/CVE-2020-12415",
      "title": "Firefox ESR: When \u0022%2F\u0022 was present in a manifest URL, Firefox\u0027s AppCache behavior may have become confused and allowed\u2026",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 6.5,
      "epss": 0.01265,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15652",
      "url": "https://patchblox.com/security/cve/CVE-2020-15652",
      "title": "Firefox ESR and 2 others: By observing the stack trace for JavaScript errors in web workers, it was possible to leak the result\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.01263,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26965",
      "url": "https://patchblox.com/security/cve/CVE-2020-26965",
      "title": "Firefox ESR and 2 others: Some websites have a feature \u0022Show Password\u0022 where clicking a button will change a password field into\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.01262,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26956",
      "url": "https://patchblox.com/security/cve/CVE-2020-26956",
      "title": "Firefox ESR and 2 others: In some cases, removing HTML elements during sanitization would keep existing SVG event handlers and\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.1,
      "epss": 0.01233,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26961",
      "url": "https://patchblox.com/security/cve/CVE-2020-26961",
      "title": "Firefox ESR and 2 others: When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.01165,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-15648",
      "url": "https://patchblox.com/security/cve/CVE-2020-15648",
      "title": "Firefox ESR: Using object or embed tags, it was possible to frame other websites, even if they disallowed framing\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.01142,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-16042",
      "url": "https://patchblox.com/security/cve/CVE-2020-16042",
      "title": "firefox: ELSA-2020-5562-1: firefox security update (IMPORTANT)",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.01111,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23953",
      "url": "https://patchblox.com/security/cve/CVE-2021-23953",
      "title": "Firefox ESR and 2 others: If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 4.3,
      "epss": 0.01056,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26951",
      "url": "https://patchblox.com/security/cve/CVE-2020-26951",
      "title": "Firefox ESR and 2 others: A parsing and event loading mismatch in Firefox\u0027s SVG code could have allowed load events to fire, even\u2026",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.1,
      "epss": 0.01051,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-13T08:00:37Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}