Microsoft Windows is prone to a local privilege-escalation vulnerability. An attacker can exploit this issue to execute arbitrary code with SYSTEM-level privileges. Successfully exploiting this issue will result in the complete compromise of affected computers.
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 has released an advisory and updates. Please see the references for details.