http://blogs.technet.com/srd/archive/2008/10/14/ms08-066-how-to-correctly-validate-and-capture-user-mode-data.aspxThe driver afd.sys is responsible for handling socket connections. MS08-066 addresses several vulnerabilities in afd.sys that could allow an attacker to execute arbitrary code in kernel mode. These vulnerabilities can only be exploited locally and thereen-USCommunityServer 2.1 SP1 (Build: 61025.2)