CVE-2021-38510

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 94 Thunderbird versions prior to 91.3 Firefox ESR versions prior to 91.3

Description The issue is related to inadequate access control in Mozilla Firefox, Firefox ESR, and the Thunderbird email client for Mac OS operating systems. It is associated with the handling of .inetloc files, which can run commands on a user's computer due to a flaw in Mac OS. The vulnerability can be exploited by a remote attacker to execute arbitrary code when loading .inetloc files. This issue only affects Mac OS operating systems, with other operating systems being unaffected.

Recommendations For Firefox versions prior to 94, update to version 94 or later to resolve the issue. For Thunderbird versions prior to 91.3, update to version 91.3 or later to resolve the issue. For Firefox ESR versions prior to 91.3, update to version 91.3 or later to resolve the issue.