UpdatesDescription: 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. This vulnerability may only be exploited if the attacker is on-link. The security update addresses the vulnerabilities by changing the way Windows TCP/IP performs bounds checking and other packet handling operations.

Update type: Critical

Release date: February 9, 2010

Applies to: All versions

Knowledge base: http://support.microsoft.com/kb/974145

Download link: 32-bit | 64-bit
Comments:Here are the specifics on the vulnerabilities covered by this update:

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