Microsoft announced the January 2011 security bulletins, addressing three vulnerabilities in Windows.
"The first bulletin is Important and affects Windows Vista. The second bulletin has an aggregate of Critical and all supported versions of Windows are affected."
"This month we will not be releasing updates to address Security Advisory 2490606 (public vulnerability affecting Windows Graphics Rendering Engine) and Security Advisory 2488013 (public vulnerability affecting Internet Explorer). We continue to actively monitor both vulnerabilities and for Advisory 2488013 we have started to see targeted attacks. If customers have not already, we recommend they consult the Advisory for the mitigation recommendations. We continue to watch the threat landscape very closely and if the situation changes," stated Microsoft.