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Known vulnerabilities in Mozilla Firefox

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CVE Summary Score Published
CVE-2025-1938 Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7 6.5 Medium Mar 4, 2025
CVE-2025-1943 Memory safety bugs present in Firefox 135 and Thunderbird 135 8.2 High Mar 4, 2025
CVE-2025-1937 Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7 7.5 High Mar 4, 2025
CVE-2025-1936 jar: URLs retrieve local file content packaged in a ZIP archive 7.3 High Mar 4, 2025
CVE-2025-1942 When String.toUpperCase() caused a string to get longer it was possible for uninitialized memory to be incorporated into… 9.8 Critical Mar 4, 2025
CVE-2025-1941 Under certain circumstances, a user opt-in setting that Focus should require authentication before use could have been… 9.1 Critical Mar 4, 2025
CVE-2025-1935 A web page could trick a user into setting that site as the default handler for a custom URL protocol 4.3 Medium Mar 4, 2025
CVE-2025-1940 A select option could partially obscure the confirmation prompt shown before launching external apps 7.1 High Mar 4, 2025
CVE-2025-1934 It was possible to interrupt the processing of a RegExp bailout and run additional JavaScript, potentially triggering… 6.5 Medium Mar 4, 2025
CVE-2025-1932 An inconsistent comparator in xslt/txNodeSorter could have resulted in potentially exploitable out-of-bounds access 8.1 High Mar 4, 2025
CVE-2025-1931 It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a… 7.5 High Mar 4, 2025
CVE-2025-1933 On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory 7.6 High Mar 4, 2025
CVE-2025-1939 Android apps can load web pages using the Custom Tabs feature 3.9 Low Mar 4, 2025
CVE-2025-1930 On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use-after-free in the… 8.8 High Mar 4, 2025
CVE-2025-1414 Memory safety bugs present in Firefox 135 6.5 Medium Feb 18, 2025
CVE-2025-1020 Memory safety bugs present in Firefox 134 and Thunderbird 134 9.8 Critical Feb 4, 2025
CVE-2025-1017 Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6 9.8 Critical Feb 4, 2025
CVE-2025-1016 Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19,… 9.8 Critical Feb 4, 2025
CVE-2025-1014 Certificate length was not properly checked when added to a certificate store 8.8 High Feb 4, 2025
CVE-2025-1013 A race condition could have led to private browsing tabs being opened in normal browsing windows 6.5 Medium Feb 4, 2025
CVE-2025-1019 The z-order of the browser windows could be manipulated to hide the fullscreen notification 4.3 Medium Feb 4, 2025
CVE-2025-1012 A race during concurrent delazification could have led to a use-after-free 9.8 Critical Feb 4, 2025
CVE-2025-1011 A bug in WebAssembly code generation could have lead to a crash 9.8 Critical Feb 4, 2025
CVE-2025-1010 An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash 9.8 Critical Feb 4, 2025
CVE-2025-1018 The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user 7.3 High Feb 4, 2025

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