CVE-2021-38495

Name of the Vulnerable Software and Affected Versions Thunderbird versions prior to 91.1 Firefox ESR versions prior to 91.1

Description The issue is related to a buffer overflow in memory, which can be exploited by a remote attacker using a specially crafted web page, potentially allowing the execution of arbitrary code. There is evidence of memory corruption, and it is presumed that some of these bugs could have been exploited with enough effort.

Recommendations For Thunderbird versions prior to 91.1, update to version 91.1 or later. For Firefox ESR versions prior to 91.1, update to version 91.1 or later.