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Known vulnerabilities in Mozilla Firefox ESR

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CVE Summary Score Published
CVE-2020-26971 Certain blit values provided by the user were not properly constrained leading to a heap buffer overflow on some video… Not rated Jan 7, 2021
CVE-2020-26973 Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed Not rated Jan 7, 2021
CVE-2020-26974 When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the… Not rated Jan 7, 2021
CVE-2020-26978 Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal… Not rated Jan 7, 2021
CVE-2020-35111 When an extension with the proxy permission registered to receive , the proxy.onRequest callback was not triggered for… Not rated Jan 7, 2021
CVE-2020-35112 If a user downloaded a file lacking an extension on Windows, and then "Open"-ed it from the downloads panel, if there… Not rated Jan 7, 2021
CVE-2020-35113 Mozilla developers reported memory safety bugs present in Firefox 83 and Firefox ESR 78.5 Not rated Jan 7, 2021
CVE-2020-26968 Mozilla developers reported memory safety bugs present in Firefox 82 and Firefox ESR 78.4 Not rated Dec 9, 2020
CVE-2020-26966 Searching for a single word from the address bar caused an mDNS request to be sent on the local network searching for… Not rated Dec 9, 2020
CVE-2020-26965 Some websites have a feature "Show Password" where clicking a button will change a password field into a textbook field,… Not rated Dec 9, 2020
CVE-2020-26961 When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not… Not rated Dec 9, 2020
CVE-2020-26960 If the Compact() method was called on an nsTArray, the array could have been reallocated without updating other… Not rated Dec 9, 2020
CVE-2020-26959 During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a… Not rated Dec 9, 2020
CVE-2020-26958 Firefox did not block execution of scripts with incorrect MIME types when the response was intercepted and cached… Not rated Dec 9, 2020
CVE-2020-26956 In some cases, removing HTML elements during sanitization would keep existing SVG event handlers and therefore lead to… Not rated Dec 9, 2020
CVE-2020-26953 It was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus making it… Not rated Dec 9, 2020
CVE-2020-26951 A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after… Not rated Dec 9, 2020
CVE-2020-26950 In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an… Not rated Dec 9, 2020
CVE-2020-15683 Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR 78.3 Not rated Oct 22, 2020
CVE-2020-15663 If Firefox is installed to a user-writable directory, the Mozilla Maintenance Service would execute updater.exe from the… Not rated Oct 1, 2020
CVE-2020-15664 By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access… Not rated Oct 1, 2020
CVE-2020-15669 When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified Not rated Oct 1, 2020
CVE-2020-15670 Mozilla developers reported memory safety bugs present in Firefox for Android 79 Not rated Oct 1, 2020
CVE-2020-15673 Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2 Not rated Oct 1, 2020
CVE-2020-15676 Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in… Not rated Oct 1, 2020

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