EUVD-2026-110955

Use-after-free in the XSLT component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...

CVE-2026-117925 Use-after-free in the DOM: Core & HTML component

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...

CVE-2026-117925

A use-after-free vulnerability exists in the DOM: Core & HTML component of Mozilla Firefox and Thunderbird. This flaw can impact the stability and security of the browser or mail client. Remediation is available in Firefox 159 , Firefox ESR 115.44 , Firefox ESR 153.6 , Thunderbird 159 , and Thund...

CVE-2026-117924

A use-after-free vulnerability exists in the XSLT component of the Firefox and Thunderbird browsers. This issue has been addressed in Firefox 159 , Firefox ESR 115.44 , Firefox ESR 153.6 , Thunderbird 159 , and Thunderbird 153.6 . No specific exploit details or evidence of in-the-wild exploitatio...

CVE-2026-117922 Use-after-free in the Networking: WebSockets component

Use-after-free in the Networking: WebSockets component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...

EUVD-2026-110952

Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...

CVE-2026-117923 Use-after-free in the Audio/Video component

Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...

CVE-2026-117921 Use-after-free in the CSS Parsing and Computation component

Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...

EUVD-2026-110953

Use-after-free in the Networking: WebSockets component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...

EUVD-2026-110954

Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...

CVE-2026-117921

A Use-after-free vulnerability exists in the CSS Parsing and Computation component of the Firefox web browser and the Thunderbird email client. The issue was resolved in Firefox versions 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6. While the documents confir...

CVE-2026-117922

A use-after-free vulnerability exists in the Networking: WebSockets component of the Mozilla Firefox and Thunderbird applications. This flaw was addressed in Firefox 159 , Firefox ESR 115.44 , Firefox ESR 153.6 , Thunderbird 159 , and Thunderbird 153.6 . The documentation does not provide specifi...

CVE-2026-117923

A use-after-free vulnerability exists in the Audio/Video component of the Mozilla Firefox and Thunderbird browsers. This flaw was addressed in Firefox 159 , Firefox ESR 115.44 , Firefox ESR 153.6 , Thunderbird 159 , and Thunderbird 153.6 . While the vulnerability is confirmed to exist in these co...

EUVD-2026-110950

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...

CVE-2026-117919 Use-after-free in the DOM: Core & HTML component

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...

EUVD-2026-110951

Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...

CVE-2026-117920

A use-after-free vulnerability exists in the DOM: HTML Parser component of the Mozilla Firefox web browser and Thunderbird email client. This flaw allows for potential arbitrary code execution or information disclosure. The vulnerability was addressed in Firefox 159 , Firefox ESR 153.6 , Thunderb...

CVE-2026-117920 Use-after-free in the DOM: HTML Parser component

Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...

CVE-2026-117918

A use-after-free vulnerability exists in the Graphics: Canvas2D component of the Mozilla Firefox and Thunderbird browsers. This flaw allows for potential privilege escalation . The issue was addressed in Firefox 159 , Firefox ESR 115.44 , Firefox ESR 153.6 , Thunderbird 159 , and Thunderbird 153....

CVE-2026-117918 Use-after-free in the Graphics: Canvas2D component

Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6...