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Vulnerabilities of Mozilla Firefox

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CVE Summary Score Published
CVE-2026-117951 Use-after-free in the DOM: Core & HTML component 8.8 High Oct 27, 2026
CVE-2026-117952 Uninitialized memory in the Networking component 8.1 High Oct 27, 2026
CVE-2026-117948 Use-after-free in the SVG component 6.3 Medium Oct 27, 2026
CVE-2026-117949 Use-after-free in the DOM: Core & HTML component 8.8 High Oct 27, 2026
CVE-2026-117950 Incorrect boundary conditions in the DOM: Core & HTML component 8.8 High Oct 27, 2026
CVE-2026-117946 Incorrect boundary conditions in the JavaScript Engine component 9.8 Critical Oct 27, 2026
CVE-2026-117947 Use-after-free in the XML component 6.3 Medium Oct 27, 2026
CVE-2026-117943 Use-after-free in the DOM: Core & HTML component 8.8 High Oct 27, 2026
CVE-2026-117944 Use-after-free in the Layout component 6.3 Medium Oct 27, 2026
CVE-2026-117945 Incorrect boundary conditions in the XML component 9.8 Critical Oct 27, 2026
CVE-2026-117940 Use-after-free in the DOM: Core & HTML component 8.8 High Oct 27, 2026
CVE-2026-117941 Use-after-free in the DOM: CSS Object Model component 8.8 High Oct 27, 2026
CVE-2026-117942 Incorrect boundary conditions in the JavaScript Engine: JIT component 7.3 High Oct 27, 2026
CVE-2026-117937 Invalid pointer in the JavaScript Engine component 7.3 High Oct 27, 2026
CVE-2026-117938 Use-after-free in the Layout component 6.3 Medium Oct 27, 2026
CVE-2026-117939 Use-after-free in the XML component 6.3 Medium Oct 27, 2026
CVE-2026-117935 Use-after-free in the DOM: Bindings (WebIDL) component 6.3 Medium Oct 27, 2026
CVE-2026-117936 Use-after-free in the DOM: Core & HTML component 8.8 High Oct 27, 2026
CVE-2026-117933 Frame poisoning in the CSS Parsing and Computation component 5.4 Medium Oct 27, 2026
CVE-2026-117934 Use-after-free in the Layout component 6.3 Medium Oct 27, 2026
CVE-2026-117932 Use-after-free in the DOM: Core & HTML component 8.8 High Oct 27, 2026
CVE-2026-117929 Use-after-free in the DOM: Core & HTML component 8.8 High Oct 27, 2026
CVE-2026-117930 Use-after-free in the DOM: Bindings (WebIDL) component 8.8 High Oct 27, 2026
CVE-2026-117931 Use-after-free in the DOM: Events component 8.8 High Oct 27, 2026
CVE-2026-117927 Use-after-free in the SVG component 6.3 Medium Oct 27, 2026

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