Microsoft's security update for January fixes three vulnerabilities in Windows. One of the security bulletins, rated critical, addresses flaws that affect all currently supported versions of Windows. The second bulletin addresses a flaw in the Windows backup tool and affects machines running Windows Vista. There are a handful of known vulnerabilities with exploit code publicly available that Microsoft chose not to fix in this go-round.


For more info:
http://www.microsoft.com/technet/sec.../MS11-jan.mspx