Microsoft Windows Font Object Buffer Overflow Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on vulnerable installations of Microsoft 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 processing of font data in win32k.sys. By making API calls with crafted parameters, code can trigger an overflow of a buffer. An attacker can leverage this vulnerability to escalate privilege to SYSTEM.