EUVD-2026-78484

Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 140.16 and Thunderbird 140.16...

CVE-2026-92020

CVE-2026-92020 is a privilege escalation vulnerability caused by incorrect boundary conditions in the Graphics: WebRender component of Mozilla's Firefox and Thunderbird browsers. The CVSS 3.1 score is 8.8 (HIGH) with a vector of AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating that remote, low-com...

CVE-2026-92020 Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component

Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3...

CVE-2026-92020 Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component

Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16...

EUVD-2026-78483

Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16...

CVE-2026-92020

Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3...

CVE-2026-92019

Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3...

EUVD-2026-78482

Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16...

CVE-2026-92019

CVE-2026-92019 is a mitigation bypass in the Remote Settings Client component of Mozilla's Firefox and Thunderbird browsers. The vulnerability allows an attacker to circumvent an existing security control within that component, though the specific mechanism and impact are not detailed in the prov...

CVE-2026-92019 Mitigation bypass in the Remote Settings Client component

Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3...

CVE-2026-92018

CVE-2026-92018 is a sandbox escape in the DOM: Core & HTML component of Mozilla's Firefox and Thunderbird. An attacker who achieves code execution within a sandboxed context (e.g., via a browser extension or web content) could potentially break out to gain higher privileges in the host process. T...

CVE-2026-92018 Sandbox escape in the DOM: Core & HTML component

Sandbox escape in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3...

CVE-2026-92018

Sandbox escape in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3...

EUVD-2026-78481

Sandbox escape in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16...

CVE-2026-92017 Privilege escalation in the DOM: Service Workers component

Privilege escalation in the DOM: Service Workers component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16...

CVE-2026-92017

Privilege escalation in the DOM: Service Workers component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3...

EUVD-2026-78480

Privilege escalation in the DOM: Service Workers component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16...

CVE-2026-92017 Privilege escalation in the DOM: Service Workers component

Privilege escalation in the DOM: Service Workers component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3...

CVE-2026-92017

CVE-2026-92017 is a privilege escalation vulnerability in the DOM: Service Workers component of Firefox and Thunderbird , scored CVSS 3.1: 8.8 (HIGH) with a network attack vector requiring user interaction and no prior privileges. The CISA SSVC assessment rates exploitation as none , automatabili...

EUVD-2026-78479

Use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16...