A vulnerability was found in Mozilla’s Thunderbird. A patch is already available and should be installed soon.
The re it is pointed out, however, that such vulnerabilities are not exploited via e-mails in Thunderbird, since scripting is deactivated by default when reading e-mails. However, they pose a certain risk in the browser or in browser-like contexts.
It is advisable to update Thunderbird as soon as possible. Usually this is done automatically. Alternatively, the update can also be triggered manually via the setting.