CVE-2026-12321

Summary: CVE-2026-12321 is a JIT miscompilation in the JavaScript: WebAssembly component. Affected products: Firefox and Thunderbird (WebAssembly/JS engine). Root cause: JIT miscompilation in the WebAssembly component. Impact: Not explicitly quantified beyond miscompilation; CVSS v3.1 base score ...

CVE-2026-12321

JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152 and Thunderbird 152...

CVE-2026-12321 JIT miscompilation in the JavaScript: WebAssembly component

JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152 and Thunderbird 152...

CVE-2026-12321

JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152 and Thunderbird 152...

CVE-2026-12299

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

CVE-2026-12299

CVE-2026-12299 is a JIT miscompilation vulnerability in the DOM: Core & HTML component that affects Firefox and Thunderbird products. The issue is fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. The CVSSv3.1 vector is CVSS:3.1/AV:N/AC:H/PR:N/...

CVE-2026-12299 JIT miscompilation in the DOM: Core & HTML component

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

CVE-2026-12299 JIT miscompilation in the DOM: Core & HTML component

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

EUVD-2026-37090

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

PT-2026-49668

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 152 Firefox ESR versions prior to 140.12 Firefox ESR versions prior to 115.37 Thunderbird versions prior to 152 Thunderbird versions prior to 140.12 Description JIT miscompilation occurs in the DOM: Core & HTML...

KLA91100 Multiple vulnerabilities in Mozilla Firefox ESR

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code. Below is a complete list of vulnerabilities: 1. Security vulnerability in the Graphics: WebRender compone...

KLA91101 Multiple vulnerabilities in Mozilla Firefox

Multiple vulnerabilities were found in Mozilla Firefox. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code, obtain sensitive information, spoof user interface. Below is a complete list of vulnerabilities: 1. Security...

SUSE CVE-2026-10702

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3...

CVE-2026-10702

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3...

CVE-2026-10702

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3...

CVE-2026-10702

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3...

CVE-2026-10702

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3...

PT-2026-45823

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 151.0.3 Description A JIT miscompilation issue exists in the JavaScript Engine's JIT component, where JIT refers to Just-In-Time compilation, a method of improving program execution speed by compiling code during...

CVE-2026-8389

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: JIT miscompilation in the JavaScript Engine: JIT component...

Linux Distros Unpatched Vulnerability : CVE-2026-8389

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3. CVE-2026-8389 Note that Nessus relies on the presen...