PT-2026-126448

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird ESR versions prior to 153.6 Description A use-after-free issue exists in the JavaScript: GC component. Use-after-free is a memory...

PT-2026-126449

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 115.44 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists in the Graphics: Canvas2D...

PT-2026-126457

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 115.44 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists in the Internationalization...

PT-2026-126465

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 115.44 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists in the Layout component...

PT-2026-126468

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird ESR versions prior to 153.6 Description A use-after-free issue exists in the Layout: Grid component. Use-after-free is a memory...

PT-2026-126485

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird ESR versions prior to 153.6 Description A use-after-free issue exists in the Layout: Text and Fonts component. A use-after-free...

PT-2026-126487

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists in the JavaScript: GC component. Use-after-free is a memory...

PT-2026-126489

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 115.44 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists in the CSS Parsing and...

PT-2026-126490

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 115.44 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists in the Networking component...

PT-2026-126491

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 115.44 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists in the Graphics: ImageLib...

PT-2026-126499

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird ESR versions prior to 153.6 Description A use-after-free issue exists in the XSLT component. Use-after-free is a memory corruption...

PT-2026-126503

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists in the DOM: HTML Parser component. Use-after-free is a memory...

PT-2026-126508

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 115.44 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists within the DOM: Core and HTM...

PT-2026-126510

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 115.44 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists in the SVG component...

PT-2026-126515

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists within the DOM: Core and HTML components. A use-after-free occurs...

PT-2026-126518

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 115.44 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists in the DOM: Bindings WebIDL...

PT-2026-126523

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists within the DOM: Core and HTML component. A use-after-free occurs...

PT-2026-126524

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 115.44 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists in the DOM: CSS Object Model...

PT-2026-126526

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 115.44 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird versions prior to 153.6 Description A use-after-free issue exists within the DOM: Core and HTM...

PT-2026-126530

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 159 Firefox ESR versions prior to 153.6 Thunderbird versions prior to 159 Thunderbird ESR versions prior to 153.6 Description A use-after-free issue exists in the XML component. Use-after-free is a memory corruption...