Windows Elevation of Privilege Vulnerability

An elevation of privilege vulnerability exists when Windows fails to check the length of a buffer prior to copying memory to it. An attacker who successfully exploited the vulnerability could gain elevated privileges on a targeted system.

To exploit the vulnerability, an attacker would first need access to the target system and have the ability to copy a file to a shared folder or drive.

The security update addresses the vulnerability by correcting the way that Windows validates the buffer lengths.