Pakhunov.Anton.N

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 155 Firefox ESR versions prior to 153.2 Thunderbird versions prior to 155 Thunderbird versions prior to 153.2 **Description** A site isolation issue exists within the DOM: Push Subscriptions component. Site isolation is a security mechanism that ensures web pages from different sites are processed in separate processes to prevent one site from accessing data from another. **Recommendations** Update Firefox to version 155. Update Firefox ESR to version 153.2. Update Thunderbird to version 155. Update Thunderbird to version 153.2.

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 154 Firefox ESR versions prior to 153.1 Thunderbird versions prior to 154 Thunderbird versions prior to 153.1 **Description** A same-origin policy bypass exists within the DOM: Service Workers component. The same-origin policy is a critical security mechanism that restricts how a document or script loaded from one origin can interact with a resource from another origin. **Recommendations** Update Firefox to version 154. Update Firefox ESR to version 153.1. Update Thunderbird to version 154. Update Thunderbird to version 153.1.

**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 Firefox to version 153 or later. Update Firefox ESR to version 140.13 or later. Update Thunderbird to version 153 or later. Update Thunderbird to version 140.13 or later.

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 151 Firefox ESR versions prior to 140.11 Thunderbird versions prior to 151 Thunderbird versions prior to 140.11 **Description** A privilege escalation issue exists within the Security component. **Recommendations** Update to version 151 Update to version 140.11 Update to version 151 Update to version 140.11

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 151 Thunderbird versions prior to 151 **Description** Privilege escalation exists in the WebRTC: Audio/Video component. **Recommendations** Update Firefox to version 151. Update Thunderbird to version 151.