Mozilla · Thunderbird · CVE-2021-38500
**Name of the Vulnerable Software and Affected Versions**
Firefox versions prior to 93
Firefox ESR versions prior to 91.2
Thunderbird versions prior to 78.15
Thunderbird versions prior to 91.2
**Description**
The issue is related to memory safety bugs present in Firefox, which can lead to memory corruption. With sufficient effort, these bugs could be exploited to run arbitrary code. This allows a remote attacker to execute code in the system.
**Recommendations**
For Firefox versions prior to 93, update to version 93 or later.
For Firefox ESR versions prior to 91.2, update to version 91.2 or later.
For Thunderbird versions prior to 78.15, update to version 78.15 or later.
For Thunderbird versions prior to 91.2, update to version 91.2 or later.