PT-2026-21718

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description The JavaScript Engine component contains an invalid pointer issue. Recommendations Update Firef...

PT-2026-27397

Name of the Vulnerable Software and Affected Versions: Firefox versions prior to 149 Firefox ESR versions prior to 115.34 and 140.9 Thunderbird versions prior to 149 and 140.9 Description: A flaw exists in the JavaScript Engine's JIT component, specifically a JIT miscompilation issue. This can le...

PT-2026-27416

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description An undefined behavior exists within the WebRTC: Signaling component. This issue impacts the...

PT-2026-27394

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description The Audio/Video: Web Codecs component contains incorrect boundary conditions. Recommendations...

PT-2026-27398

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 115.34 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description The issue involves incorrect boundary conditions within th...

PT-2026-21720

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 115.33 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description A use-after-free issue exists in the DOM, specifically...

PT-2026-21723

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description A same-origin policy bypass exists in the Networking: JAR component. This allows potential...

PT-2026-21725

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird ESR versions prior to 140.8 Description The software contains memory safety bugs that exhibit evidence of memory corruption. It is...

PT-2026-21690

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 115.33 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description The issue involves incorrect boundary conditions within th...

PT-2026-21693

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 115.33 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description A sandbox escape is possible due to incorrect boundary...

PT-2026-27389

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 115.34 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description A sandbox escape is possible due to incorrect boundary...

PT-2026-21724

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description A mitigation bypass exists in the Networking: Cache component. This issue may allow bypassing...

PT-2026-21704

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 115.33 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description An undefined behavior issue exists within the DOM: Core &...

PT-2026-21701

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description A sandbox escape issue exists in the Storage: IndexedDB component. This allows a potential esca...

PT-2026-27393

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 115.34 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description An integer overflow exists within the Graphics component d...

PT-2026-27410

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description An information disclosure issue exists in the Widget: Cocoa component. Recommendations Update...

PT-2026-27415

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description A privilege escalation issue exists in the Netmonitor component. This allows for potential...

PT-2026-27384

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 115.34 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description The Graphics: Canvas2D component contains incorrect bounda...

PT-2026-21714

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description An integer overflow exists within the Libraries component of NSS. This issue may lead to...

PT-2026-21692

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 115.33 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description An issue exists due to incorrect boundary conditions withi...