CVE-2021-23978

Name of the Vulnerable Software and Affected Versions: Firefox versions prior to 86 Thunderbird versions prior to 78.8 Firefox ESR versions prior to 78.8

Description: The issue is related to memory safety bugs present in certain versions of Firefox and Thunderbird, which could potentially be exploited to run arbitrary code due to evidence of memory corruption.

Recommendations: For Firefox versions prior to 86, update to version 86 or later. For Thunderbird versions prior to 78.8, update to version 78.8 or later. For Firefox ESR versions prior to 78.8, update to version 78.8 or later.