Technical Information

Brief overview of the risk:
This security update resolves four privately reported vulnerabilities in Microsoft Windows. The most severe of these vulnerabilities could allow remote code execution if specially crafted packets are sent to a computer with IPv6 enabled. An attacker could try to exploit the vulnerability by creating specially crafted ICMPv6 packets and sending the packets to a system with IPv6 enabled.
Detailed Information on the risk:

A remote code execution vulnerability exists in the Windows TCP/IP stack due to insufficient bounds checking when processing specially crafted ICMPv6 Router Advertisement packets. An anonymous attacker could exploit the vulnerability by sending specially crafted ICMPv6 Router Advertisement packets to a computer with IPv6 enabled. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Further information on this exploit is available at : MS10-009