Microsoft released its pre-announcement for the upcoming patch Tuesday. The summary indicates 11 bulletins total, 5 are critical all with remote code execution and 6 Important with a mix of remote code execution, security feature bypass and elevation of privileges. The announcement is available here.
[1] http://technet.microsoft.com/en-us/security/bulletin/ms13-dec
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Guy Bruneau IPSS Inc. gbruneau at isc dot sans dot edu
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