Just a friendly FYI for all you Internet Explorer users out there. Microsoft has issued an out-of-cycle patch for the Internet Explorer vulnerability that came to light. That means it's time to run Windows Update!
Here's the summary from the security bulletin (MS08-078):
The vulnerability could allow remote code execution if a user views a specially crafted Web page using Internet Explorer. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
This security update is rated Critical for Internet Explorer 5.01, Internet Explorer 6, Internet Explorer 6 Service Pack 1, and Internet Explorer 7. For information about Internet Explorer 8 Beta 2, please see the section, Frequently Asked Questions (FAQ) Related to This Security Update. For more information, see the subsection, Affected and Non-Affected Software, in this section.
I've rolled out this patch onto several systems and there don't seem to be any obvious negative side-effects.