VMware potential vulnerabilities... VMware gurus, come on in

If i have a user connecting to a corporate VPN on a VM (workstation or fusion) to intentionally allow themselves access to the internet on the base OS (hypervisor), what kind of vulnerabilities present themselves?

I’m interested because I know and understand that the VM would share the physical NIC to get out to the internet and also connect the VPN, so can there be a way to exploit the VPN’s link?

This is all theoretical, no tutorials, help, or otherwise. Just a discussion.