Microsoft Windows AppX Deployment Service Hard Link 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 AppX Deployment Service. By creating a hard link, an attacker can abuse the service to weaken the ACL of a chosen file. An attacker can leverage this vulnerability to escalate privileges to resources normally protected from the current user or app.