Wacom Drivers for Windows Incorrect Permission Assignment Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Wacom Drivers for Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the WacomInstallI.txt file by the PrefUtil.exe utility. The issue results from incorrect permissions on the WacomInstallI.txt file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-16318.