An elevation of privilege vulnerability exists when the Windows Print Workflow Service improperly handles objects in memory. An attacker who successfully exploited this vulnerability could gain elevated privileges and break out of the AppContainer sandbox.To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability.The security update addresses the vulnerability by correcting how the Windows Print Workflow Service handles objects in memory.