Your security scan has revealed security vulnerabilities due to open ports.
This could be due to the domain you have run your scan against is being routed via Cloudflare.
By default, Cloudflare proxies traffic destined for the HTTP/HTTPS ports listed below.
HTTPS ports supported by Cloudflare:
Re run your test using an Acquia default domain (.prod.acquia-sites.com) or a domain that you know is pointed to Acquia directly.