C.M.Chang

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 76 **Description** Memory safety bugs were reported in Firefox, which showed evidence of memory corruption. It is presumed that with enough effort, some of these bugs could have been exploited to run arbitrary code. **Recommendations** For versions prior to 76, update to version 76 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** Thunderbird versions prior to 68.6 Firefox versions prior to 74 Firefox ESR versions prior to 68.6 **Description** The issue occurs when a device is changed while a stream is about to be destroyed, potentially leading to a use-after-free and a crash. **Recommendations** For Thunderbird versions prior to 68.6, update to version 68.6 or later. For Firefox versions prior to 74, update to version 74 or later. For Firefox ESR versions prior to 68.6, update to version 68.6 or later.