Microsoft has released asecurity bulletin (out-of-band) MS08-067 Vulnerability in Server Service Could Allow Remote Code Execution (958644) which addresses a critical vulnerability in all currently supported versions of Windows. The bulletin can be reviewed on our Microsoft bulletins page and accessed directly HERE This security update was released outside of the usual monthly security bulletin release cycle in an effort to protect customers. Microsoft recommends customers prepare their systems and networks to apply this security bulletin immediately once released to help ensure that their computers are protected from attempted criminal attacks.