Hi Aleksandar,
What feed and platform do you use ?
If you are on a Microsoft Server, this vulnerabilities are no longer part of the Greenbone community feed. If you have purchased a Greenbone appliance including the Greenbone Security Feed, please open a support ticket to upgrade to GVM 20.08. Your installation is end of support by 01.01.2021 and the support helps you to upgrade.
I suggest you read our FAQ fist here: