CVE-2021-4126 | Mozilla Thunderbird up to 91.4.0 Digital Signature unknown vulnerability

A vulnerability has been found in Mozilla Thunderbird up to 91.4.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Digital Signature Handler. The manipulation leads to an unknown weakness. This vulnerability is known as CVE-2021-4126. The attack can be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.