The first step is: find out the CVE-ID of that vulnerability. The CVE-ID is assigned to uniquely identify a vulnerability.
The second step is: check the knowledgebase of Parature. Hirschmann might have provided already an answer to your question. Usually during entering your request in a ticket you might already be notified by the system about a possible information.
The third step is: create a ticket giving us all information you have, especially the CVE-ID.and links to your source of information.