Windows Malicious Software Removal Tool Elevation of Privilege Vulnerability

An elevation of privilege vulnerability exists when the Windows Malicious Software Removal Tool (MSRT) improperly handles junctions. To exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges. The security update addresses the vulnerability by correcting how Windows Malicious Software Removal Tool (MSRT) handles junctions.