EUVD-2026-37068

Clickjacking issue in the Widget: Gtk component. This vulnerability was fixed in Firefox 152...

EUVD-2026-37074

Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This...

EUVD-2026-37070

Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12...

EUVD-2026-37097

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12...

EUVD-2026-37111

Information disclosure in the Password Manager component. This vulnerability was fixed in Firefox 152...

EUVD-2026-37107

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152...

EUVD-2026-37096

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12...

EUVD-2026-37100

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12...

EUVD-2026-37101

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12...

EUVD-2026-37105

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12...

EUVD-2026-37095

Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12...

EUVD-2026-37099

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12...

EUVD-2026-37087

Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12...

EUVD-2026-37090

JIT miscompilation in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, and Firefox ESR 115.37...

EUVD-2026-37089

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12...

EUVD-2026-37084

Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152...

EUVD-2026-37083

Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12...

EUVD-2026-37085

Sandbox escape in the DOM: Workers component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, and Firefox ESR 115.37...

EUVD-2026-37082

Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, and Firefox ESR 115.37...

CVE-2026-53899

Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a suffix domain to receive cookies belonging to the target site. This vulnerability was fixed in Firefox for iOS 152.0...