PT-2026-126519

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-2026-126464

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...

Mozilla Firefox security vulnerabilities

A security vulnerability exists in Mozilla Firefox versions prior to 159, Firefox ESR versions prior to 153.6, Thunderbird versions prior to 159, and Thunderbird versions prior to 153.6. This vulnerability stems from a mitigation bypass in the DOM: Push Subscriptions component, which may allow...

PT-2026-126512

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...

Mozilla Firefox security vulnerabilities

A security vulnerability exists in Mozilla Firefox versions prior to 159, Mozilla Firefox ESR versions prior to 115.44, Mozilla Firefox ESR versions prior to 153.6, Mozilla Thunderbird versions prior to 159, and Mozilla Thunderbird versions prior to 153.6. This vulnerability stems from a...

PT-2026-126550

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 mitigation bypass exists within the DOM Security component. Recommendations Update Firefo...

Mozilla Firefox security vulnerabilities

Mozilla Firefox has a security vulnerability stemming from post-free reuse in the DOM: Bindings WebIDL component...

PT-2026-126484

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-2026-126466

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: HTML Parser...

PT-2026-126483

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: Editor component...

Mozilla Firefox security vulnerabilities

Mozilla Firefox has a security vulnerability stemming from a use-after-free issue in its DOM HTML parser component, which may lead to memory corruption...

Mozilla Thunderbird < 159.0

The version of Thunderbird installed on the remote Windows host is prior to 159.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-121 advisory. - Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 159. CVE-2026-1180...

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-2026-126518

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-2026-126598

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159...

Mozilla Firefox permission and access control issue vulnerability

Versions prior to Mozilla Firefox 159 and Thunderbird 159 contain a permission escalation and access control vulnerability stemming from an issue in the Navigation component of DOM...

Mozilla Firefox security vulnerabilities

A security vulnerability exists in Mozilla Firefox versions prior to 159, Mozilla Firefox ESR versions prior to 115.44, Mozilla Firefox ESR versions prior to 153.6, Mozilla Thunderbird versions prior to 159, and Mozilla Thunderbird versions prior to 153.6. This vulnerability stems from a...

PT-2026-126551

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-2026-126594

Use-after-free in the DOM: Animation component. This vulnerability was fixed in Firefox 159...

Mozilla Firefox security vulnerabilities

A security vulnerability exists in Mozilla Firefox versions prior to 159 and Thunderbird versions prior to 159. This vulnerability stems from post-free reuse in the DOM: Core & HTML components...