CVE-2021-43539 | Mozilla Firefox/Firefox ESR/Thunderbird Live Pointer use after free (Nessus ID 208604)
A vulnerability has been found in Mozilla Firefox, Firefox ESR and Thunderbird and classified as critical. Affected by this vulnerability is an unknown functionality of the component Live Pointer Handler. The manipulation leads to use after free.
This vulnerability is known as CVE-2021-43539. The attack can be launched remotely. There is no exploit available.
It is recommended to upgrade the affected component.