If you have changed the severity of a QID and want to revert it to the Qualys-defined severity, use the restore severity option.
To revert the severity to the earlier one, select the QID, and from the Quick Actions menu, select Restore Severity.
A message is displayed asking confirmation for restoring the severity of the QID.
Once you click Restore Severity, the severity of the QID is restored to the Qualys defined severity.