CVE-2026-109722

The JavaScript Engine: JIT component in Firefox is susceptible to a JIT miscompilation vulnerability (CVE-2026-109722 ). This issue has a high impact and was reported by Amy Burnett of OpenAI. Remediation is available in Firefox 158 , Firefox ESR 115.43 , and Firefox ESR 153.5 . Details regarding...

CVE-2026-109722 JIT miscompilation in the JavaScript Engine: JIT component

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

CVE-2026-109722

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

CVE-2026-109715 Incorrect boundary conditions in the JavaScript Engine component

Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

CVE-2026-109716 Incorrect boundary conditions in the JavaScript Engine component

Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

CVE-2026-109715

The JavaScript Engine component in Mozilla Firefox and Thunderbird is affected by a vulnerability caused by incorrect boundary conditions . This issue could potentially lead to arbitrary code execution, sandbox escape, information disclosure, mitigation bypass, or privilege escalation. The vulner...

CVE-2026-109715

Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

CVE-2026-109716

Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

CVE-2026-109716

The JavaScript Engine component in the Mozilla Firefox web browser and Thunderbird email client contains a vulnerability caused by incorrect boundary conditions . This issue could potentially lead to arbitrary code execution, sandbox escape, information disclosure, mitigation bypass, or privilege...

EUVD-2026-98639

Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

EUVD-2026-98638

Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

firefox: thunderbird: Use-after-free in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the JavaScript Engine: JIT component...

firefox: thunderbird: Use-after-free in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the JavaScript Engine: JIT component...

firefox: thunderbird: Use-after-free in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the JavaScript Engine: JIT component...

firefox: thunderbird: Use-after-free in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the JavaScript Engine: JIT component...

PT-2026-111443

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 158 Firefox ESR versions prior to 115.43 Firefox ESR versions prior to 153.5 Thunderbird versions prior to 158 Thunderbird versions prior to 153.5 Description A JIT miscompilation issue exists within the JIT component...

PT-2026-111442

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 158 Firefox ESR versions prior to 153.5 Thunderbird versions prior to 158 Thunderbird versions prior to 153.5 Description Incorrect boundary conditions exist within the Just-In-Time JIT component of the JavaScript...

CVE-2026-109721: Undefined Security Weakness

Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

PT-2026-111437

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 158 Firefox ESR versions prior to 115.43 Firefox ESR versions prior to 153.5 Thunderbird versions prior to 158 Thunderbird versions prior to 153.5 Description Incorrect boundary conditions exist within the JavaScript...

PT-2026-111454

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 158 Firefox ESR versions prior to 115.43 Firefox ESR versions prior to 153.5 Thunderbird versions prior to 158 Thunderbird versions prior to 153.5 Description A JIT miscompilation issue exists within the JIT component...