PT-2026-61914

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description An integer overflow exists within the Graphics: ImageLib component. An integer overflow occurs when an arithmetic operation attempts to create a numeric value that...

PT-2026-61918

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A mitigation bypass exists within the Networking component. Recommendations Update Firefox to version 153. Update Thunderbird to version 153...

PT-2026-61888

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A denial-of-service issue exists within the Graphics: WebGPU component. WebGPU is a modern API that allows web applications to access the GPU for hardware-accelerated...

PT-2026-61915

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A spoofing issue exists within the Address Bar component, which could allow an attacker to deceive users by manipulating the displayed address. Recommendations Update...

PT-2026-61868

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Firefox ESR versions prior to 115.38 Firefox ESR versions prior to 140.13 Thunderbird versions prior to 153 Thunderbird version prior to 140.13 Description A use-after-free issue exists in the Disability Access AP...

PT-2026-61899

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Firefox ESR versions prior to 140.13 Thunderbird versions prior to 153 Thunderbird versions prior to 140.13 Description A site isolation issue exists within the Networking component. Recommendations Update Firefox...

PT-2026-61887

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Firefox ESR versions prior to 140.13 Thunderbird versions prior to 153 Thunderbird versions prior to 140.13 Description A site isolation issue exists within the Networking: HTTP component. Recommendations Update...

PT-2026-61867

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Firefox ESR versions prior to 115.38 Firefox ESR versions prior to 140.13 Thunderbird versions prior to 153 Thunderbird version prior to 140.13 Description A JIT miscompilation issue exists within the JIT componen...

PT-2026-61917

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Firefox ESR versions prior to 140.13 Thunderbird versions prior to 153 Thunderbird versions prior to 140.13 Description An information disclosure issue exists within the Networking: WebSockets component. WebSocket...

PT-2026-61865

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Firefox ESR versions prior to 115.38 Firefox ESR versions prior to 140.13 Thunderbird versions prior to 153 Thunderbird version prior to 140.13 Description An invalid pointer exists within the Bindings WebIDL...

PT-2026-61863

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Firefox ESR versions prior to 115.38 Firefox ESR versions prior to 140.13 Thunderbird versions prior to 153 Thunderbird version prior to 140.13 Description A use-after-free issue exists in the DOM: Navigation...

PT-2026-61923

Name of the Vulnerable Software and Affected Versions Firefox version 152 Thunderbird version 152 Description Memory safety bugs were identified that showed evidence of memory corruption. These issues could potentially be exploited to execute arbitrary code. Recommendations Update Firefox to...

PT-2026-61907

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description An integer overflow exists within the Audio/Video component. An integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside...

PT-2026-61905

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description Incorrect boundary conditions exist within the Graphics: WebGPU component. WebGPU is a modern API that allows web applications to access the GPU for hardware-accelerat...

PT-2026-61890

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description An issue exists in the Document Object Model DOM specifically within the Copy & Paste and Drag & Drop component. Recommendations Update Firefox to version 153. Update...

PT-2026-61876

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description Incorrect boundary conditions exist within the Audio/Video: Playback component. Recommendations Update Firefox to version 153. Update Thunderbird to version 153...

PT-2026-61894

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A mitigation bypass exists within the DOM: Service Workers component. Service Workers are scripts that the browser runs in the background, separate from a web page,...

PT-2026-61897

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description Information disclosure occurs due to uninitialized memory within the Graphics: WebGPU component. WebGPU is a modern API that provides high-performance graphics and...

PT-2026-61908

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Firefox ESR versions prior to 140.13 Thunderbird versions prior to 153 Thunderbird versions prior to 140.13 Description Privilege escalation exists in WebExtensions, allowing an attacker to gain higher levels of...

PT-2026-61869

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Firefox ESR versions prior to 115.38 Firefox ESR versions prior to 140.13 Thunderbird versions prior to 153 Thunderbird version prior to 140.13 Description The Graphics component contains incorrect boundary...