2026 CVE Vulnerabilities

45,701 CVEs published in 2026.

Filter:CRITICALClear
CVE IDSeverityCVSSDescription
CVE-2026-2790CRITICAL9.8Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140...
CVE-2026-2789CRITICAL9.8Use-after-free in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Fir...
CVE-2026-2788CRITICAL9.8Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 148, Firefox ES...
CVE-2026-2787CRITICAL9.8Use-after-free in the DOM: Window and Location component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.3...
CVE-2026-2786CRITICAL9.8Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thund...
CVE-2026-2785CRITICAL9.8Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thun...
CVE-2026-2784CRITICAL9.8Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunde...
CVE-2026-2782CRITICAL9.8Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunde...
CVE-2026-2781CRITICAL9.8Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thun...
CVE-2026-2780CRITICAL9.8Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunde...
CVE-2026-2779CRITICAL9.8Incorrect boundary conditions in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR...
CVE-2026-2778CRITICAL10Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in F...
CVE-2026-2777CRITICAL9.8Privilege escalation in the Messaging System component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33,...
CVE-2026-2776CRITICAL10Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability ...
CVE-2026-2775CRITICAL9.8Mitigation bypass in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Fi...
CVE-2026-2774CRITICAL9.8Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ...
CVE-2026-2773CRITICAL9.8Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.3...
CVE-2026-2772CRITICAL9.8Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, ...
CVE-2026-2771CRITICAL9.8Undefined behavior in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, F...
CVE-2026-2770CRITICAL9.8Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33,...
CVE-2026-2768CRITICAL10Sandbox escape in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thun...
CVE-2026-2767CRITICAL9.8Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8,...
CVE-2026-2766CRITICAL9.8Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, ...
CVE-2026-2765CRITICAL9.8Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thund...
CVE-2026-2764CRITICAL9.8JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148,...

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