Microsoft Windows is prone to a local privilege-escalation vulnerability that affects the TCP/IP stack component ('tcpip.sys'). An attacker can exploit this issue to gain elevated privileges by executing arbitrary code in the context of another process. Failed exploit attempts may cause a denial-of-service condition.
Permit local access for trusted individuals only. Where possible, use restricted environments and restricted shells.
To exploit this vulnerability, an attacker requires local access to an affected computer. Grant local access for trusted and accountable users only.
The vendor released an advisory and updates. Please see the references for details.