Skip to content

Known vulnerabilities in Mozilla Firefox

Is your version affected?

CVE Summary Score Published
CVE-2021-23974 The DOMParser API did not properly process '<noscript>' elements for escaping Not rated Feb 26, 2021
CVE-2021-23975 The developer page about:memory has a Measure function for exploring what object types the browser has allocated and… Not rated Feb 26, 2021
CVE-2021-23976 When accepting a malicious intent from other installed apps, Firefox for Android accepted manifests from arbitrary… Not rated Feb 26, 2021
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-2020-26972 The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that… 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-2020-26975 When a malicious application installed on the user's device broadcast an Intent to Firefox for Android, arbitrary… Not rated Jan 7, 2021
CVE-2020-26976 When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service… Not rated Jan 7, 2021
CVE-2020-26977 By attempting to connect a website using an unresponsive port, an attacker could have controlled the content of a tab… 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-2020-26979 When a user typed a URL in the address bar or the search bar and quickly hit the enter key, a website could sometimes… 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-2020-35114 Mozilla developers reported memory safety bugs present in Firefox 83 Not rated Jan 7, 2021
CVE-2020-26969 Mozilla developers reported memory safety bugs present in Firefox 82 Not rated Dec 9, 2020
CVE-2020-26968 Mozilla developers reported memory safety bugs present in Firefox 82 and Firefox ESR 78.4 Not rated Dec 9, 2020
CVE-2020-26967 When listening for page changes with a Mutation Observer, a malicious web page could confuse Firefox Screenshots into… 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-2020-26964 If the Remote Debugging via USB feature was enabled in Firefox for Android on an Android version prior to Android 6.0,… Not rated Dec 9, 2020
CVE-2020-26963 Repeated calls to the history and location interfaces could have been used to hang the browser Not rated Dec 9, 2020
CVE-2020-26962 Cross-origin iframes that contained a login form could have been recognized by the login autofill service, and populated 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

Other Mozilla products