Brian Grinstead

**Name of the Vulnerable Software and Affected Versions** Firefox ESR version 140.9 Thunderbird ESR version 140.9 Firefox version 149 Thunderbird version 149 **Description** Memory safety bugs involving memory corruption could allow an attacker to run arbitrary code. **Recommendations** Update Firefox ESR to version 140.10. Update Thunderbird ESR to version 140.10. Update Firefox to version 150. Update Thunderbird to version 150.

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149.0.2 Firefox ESR versions prior to 115.34.1 and 140.9.1 Thunderbird versions prior to 149.0.2 and 140.9.1 Description Memory safety bugs are present in Firefox and Thunderbird, with some showing evidence of memory corruption. These bugs could potentially be exploited to run arbitrary code. Recommendations Update Firefox to version 149.0.2 or later. Update Firefox ESR to version 115.34.1 or 140.9.1 or later. Update Thunderbird to version 149.0.2 or later. Update Thunderbird ESR to version 140.9.1 or later.

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149.0.2 Firefox ESR versions prior to 140.9.1 Thunderbird versions prior to 149.0.2 Thunderbird ESR versions prior to 140.9.1 Description Memory safety bugs are present in Firefox and Thunderbird, potentially leading to memory corruption and arbitrary code execution. These bugs were identified in versions ESR 140.9.0, 140.9.0, 149.0.1, and 149.0.1. Recommendations Update Firefox to version 149.0.2 or later. Update Firefox ESR to version 140.9.1 or later. Update Thunderbird to version 149.0.2 or later. Update Thunderbird ESR to version 140.9.1 or later.

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149.0.2 Thunderbird versions prior to 149.0.2 Description Memory safety bugs exist in Firefox 149.0.1 and Thunderbird 149.0.1. These bugs demonstrate evidence of memory corruption, and it is presumed that, with sufficient effort, they could be exploited to execute arbitrary code. The vulnerability involves writing beyond buffer boundaries. Recommendations Update Firefox to version 149.0.2 or later. Update Thunderbird to version 149.0.2 or later.