• Search for the VM at https://sevire.rwth-aachen.de/en/vsh/vms and follow the corresponding link under "vCenter link".
• Log in to the vCenter server with your serverhosting account.
• In the context of the VM, use the functions for managing the VMware tools of the vCenter server under "Actions > Guest OS".

• In the following process select "Automatic Upgrade" as upgrade type.
• Afterwards a reboot of the VM is required.
• Further information and options can be found here: https://docs.vmware.com/de/VMware-Tools.

VMware Docs