EUVD-2026-46193

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13...

EUVD-2026-46192

Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13...

CVE-2026-16351 Sandbox escape due to use-after-free in the DOM: Navigation component

Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13...

CVE-2026-16362 Use-after-free in the WebRTC: Audio/Video component

Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13...

CVE-2026-16362

Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13...

CVE-2026-16349

CVE-2026-16349 is a Same-origin policy (SOP) bypass vulnerability located in the DOM: Navigation component of the Mozilla Firefox browser and Thunderbird email client. The flaw allows for the bypassing of security boundaries intended to isolate web origins. This vulnerability has been patched in ...

CVE-2026-16349 Same-origin policy bypass in the DOM: Navigation component

Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13...

EUVD-2026-46189

Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13...

CVE-2026-16349 Same-origin policy bypass in the DOM: Navigation component

Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13...

PT-2026-61883

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 privilege escalation issue exists within the DOM: Navigation component. Recommendations...

PT-2026-61913

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A privilege escalation issue exists within the Data Loss Prevention component. Recommendations Update Firefox to version 153. Update Thunderbird to version 153...

PT-2026-61906

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 Security component. The Document Object Model DOM is a programming interface for web documents that represents the page so th...

PT-2026-61893

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 same-origin policy bypass exists in the Networking: DNS component. The same-origin policy i...

PT-2026-61886

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 Framework component of DevTools...

PT-2026-61921

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description An invalid pointer exists within the Security: PSM component. A pointer is a variable that stores the memory address of another value. Recommendations Update Firefox t...

PT-2026-61910

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A site isolation issue exists within the Graphics component. Site isolation is a security mechanism that ensures web pages from different sites are processed in separa...

PT-2026-61916

Name of the Vulnerable Software and Affected Versions Firefox for Android versions prior to 153 Description A spoofing issue exists in Firefox for Android, which could allow an attacker to deceive users by impersonating a legitimate site or entity. Recommendations Update to version 153...

PT-2026-61901

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description An integer overflow occurs in the Libraries component of NSS due to incorrect boundary conditions. An integer overflow is a condition where an arithmetic operation...

PT-2026-61891

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 privilege escalation issue exists within the DOM: Content Processes component...

PT-2026-61902

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 mitigation bypass exists within the Enterprise Policies component. Recommendations Update...