CVE-2021-43543 | Mozilla Firefox/Firefox ESR/Thunderbird CSP sandbox (Nessus ID 208604)
A vulnerability was found in Mozilla Firefox, Firefox ESR and Thunderbird. It has been rated as critical. This issue affects some unknown processing of the component CSP Handler. The manipulation leads to sandbox issue.
The identification of this vulnerability is CVE-2021-43543. The attack may be initiated remotely. There is no exploit available.
It is recommended to upgrade the affected component.