A denial of service vulnerability exists when the Windows Tile Object Service improperly handles hard links. An attacker who successfully exploited the vulnerability could cause a target system to stop responding. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would allow an attacker to overwrite system files. The update addresses the vulnerability by correcting how the Windows Tile Object Service handles hard links.

(@ma7h1as), @edwardzpeng