CVE-2023-6205

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 120 Firefox ESR versions prior to 115.5.0 Thunderbird versions prior to 115.5

Description The issue is related to the use of a MessagePort after it has been freed, potentially leading to an exploitable crash. This could allow a remote attacker to cause a denial of service or other impact. The estimated number of potentially affected devices worldwide is not specified.

Recommendations For Firefox versions prior to 120, update to version 120 or later. For Firefox ESR versions prior to 115.5.0, update to version 115.5.0 or later. For Thunderbird versions prior to 115.5, update to version 115.5 or later.