Iris Hsiao

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 50.1 Firefox ESR versions prior to 45.6 Thunderbird versions prior to 45.6 **Description** Memory safety bugs were reported, showing evidence of memory corruption. It is presumed that with enough effort, some of these bugs could be exploited to run arbitrary code. **Recommendations** For Firefox versions prior to 50.1, update to version 50.1 or later. For Firefox ESR versions prior to 45.6, update to version 45.6 or later. For Thunderbird versions prior to 45.6, update to version 45.6 or later.