Closed CVEs

I scanned a target and Greenbone find below CVEs:

Are these serious?

Thank you.

You can find the meaning / description of the “Closed CVEs” in the documentation which should help to understand / interpret this tab:

Closed CVEs
CVEs of originally detected vulnerabilities which were already confirmed as solved during the scan.
11 Reports and Vulnerability Management — Greenbone Security Manager (GSM) 20.08.13 documentation