CVE-2026-6754

A Use-after-free vulnerability exists in the JavaScript Engine component of Mozilla Firefox and the Thunderbird email client. This flaw allows an attacker to compromise the accessibility of protected information . The vulnerability has been addressed in Firefox 150 , Firefox ESR 115.35 , Firefox ...

Mozilla’s various products have security vulnerabilities

Mozilla Firefox, among others, are products of the American Mozilla Foundation. Mozilla Firefox is an open-source web browser. Mozilla Firefox ESR is a extended support version of Firefox the web browser. Mozilla Thunderbird is an email client software that emerged independently from the Mozilla...

Linux Distros Unpatched Vulnerability : CVE-2026-6754

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and...

PT-2026-33965

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Thunderbird versions prior to 150 Description An issue exists in the JavaScript Engine component. Recommendations Update Firefox to version 150. Update Thunderbird to version 150...

Mozilla -- Use-after-free

https://bugzilla.mozilla.org/showbug.cgi?id=2027541 reports: Use-after-free in the JavaScript Engine component...

Mozilla -- Other issue in the JavaScript Engine component

https://bugzilla.mozilla.org/showbug.cgi?id=2023343 reports: Other issue in the JavaScript Engine component...

Mozilla Firefox and Mozilla Thunderbird security vulnerabilities

Mozilla Firefox and Mozilla Thunderbird are both products of the American Mozilla Foundation. Mozilla Firefox is an open-source web browser. Mozilla Thunderbird is an email client software that emerged independently from the Mozilla Application Suite. This software supports IMAP and POP email...

PT-2026-33940

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Firefox ESR versions prior to 115.35 Firefox ESR versions prior to 140.10 Thunderbird versions prior to 150 Thunderbird versions prior to 140.10 Description A use-after-free issue exists in the JavaScript Engine...

KLA90994 Multiple vulnerabilities in Mozilla Thunderbird

Multiple vulnerabilities were found in Mozilla Thunderbird. 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. A...

KLA90991 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. A remote...

KLA90995 Multiple vulnerabilities in Mozilla Thunderbird ESR

Multiple vulnerabilities were found in Mozilla Thunderbird ESR. 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. A...

CVE-2026-6754: Use After Free

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

CVE-2026-6779: Improper Input Validation

Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150 and Thunderbird 150...

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

firefox: thunderbird: Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component...

firefox: thunderbird: JIT miscompilation in the JavaScript Engine component

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

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component

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

Important: Red Hat Security Advisory: thunderbird security update

An update for thunderbird is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

Chromium: CVE-2026-6363 Type Confusion in V8

This CVE was assigned by Chrome. Microsoft Edge Chromium-based ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information...

PT-2026-46520

Name of the Vulnerable Software and Affected Versions Google Chrome versions prior to 149.0.7827.53 Description A use after free issue in V8 allows a remote attacker to execute arbitrary code inside a sandbox. This is achieved by convincing a user to perform specific UI gestures while interacting...