I'm passing on this info. because it's especially
applicable to scripters. People might want to
disable or delete certasin files, or at least
take some precautions.

There are two "very serious" bugs out right now.
Both are apparently known to be actively exlpoited
and neither is patched.

A rundown is here:
http://www.techworld.com/security/news/index.cfm?newsID=7324

1) WMI Object Broker control, in WmiScriptUtils.dll.
This one is a risk for anyone with VB.Net 2005
installed, but presumably others could have installed the
DLL for WMI scripting use.
More here:
http://www.microsoft.com/technet/security/advisory/927709.mspx

No plans so far for a fix.

--------------------------------------------
2) MSXML4.DLL
Used for XML parsing. Not necessary and not a
default install in all Windows versions, but possibly
used by some scripters.

http://secunia.com/advisories/22687/

This one had a second bug report last week.