Information disclosure in the Networking: WebSockets component. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.

The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.

Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.

Spoofing issue in the Form Autofill component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.

Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.

The error page for sites with invalid TLS certificates was missing the activation-delay Firefox uses to protect prompts and permission dialogs from attacks that exploit human response time delays. If a malicious page elicited user clicks in precise locations immediately before navigating to a site with a certificate error and made the renderer extremely busy at the same time, it could create a gap between when the error page was loaded and when the display actually refreshed. With the right timing the elicited clicks could land in that gap and activate the button that overrides the certificate error for that site.

Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7.

Last updated 24 July 2024

Incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.

Incorrect boundary conditions in the Graphics: Text component. This vulnerability affects Firefox < 149 and Firefox ESR < 140.9.

Undefined behavior in the WebRTC: Signaling component. This vulnerability affects Firefox < 149 and Firefox ESR < 140.9.

Spoofing issue in Firefox. This vulnerability affects Firefox < 145, Firefox ESR < 140.5, and Firefox ESR < 115.30.

Same-origin policy bypass in the Networking: JAR component. This vulnerability affects Firefox < 148 and Firefox ESR < 140.8.

Mitigation bypass in the Networking: Cache component. This vulnerability affects Firefox < 148 and Firefox ESR < 140.8.

Security Vulnerabilities fixed in Firefox ESR 115.34.1

Spoofing issue in Firefox. This vulnerability affects Firefox < 145, Firefox ESR < 140.5, and Firefox ESR < 115.30.