An elevation of privilege vulnerability exists when the Windows Feedback Hub improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context.
To exploit this vulnerability, an attacker would first have to log on to the system with Windows Mixed Reality installed. An attacker could then run a specially crafted application to take control of an affected system.
The security update addresses the vulnerability by correcting how the Feedback Hub handles objects in memory.