Within the list of a Remote VPN Radius session attributes, there are a few Cisco:AV-pair entries:
CiscoAVPair
mdm-tlv=device-platform=win,mdm-tlv=computer-name=V000011111,mdm-tlv=device-platform-version=10.0.26100 ,mdm-tlv=ac-user-agent=AnyConnect Wi...