smb 0day network penetration and Defense-vulnerability warning-the black bar safety net

This smb 0day vulnerabilities out for a long time, since the bun work is too busy, has not bother to pay attention to it. The vulnerability affects vista, Windows 7 and windows 2 0 0 8, EXP now surely everyone on hand the others also have, it was tested can be very good to attack vista and 2 0 0 ...