June 2011 Cumulative Security Update for Internet Explorer is now available via Windows Update.
This security update is rated Critical for IE6, 7, 8, and 9 on Windows clients; for more information about the ratings and the vulnerabilities, and resolves seven vulnerabilities in IE that were disclosed in coordination with Microsoft.
"The vulnerabilities could allow remote code execution if a user visits a malicious, specially crafted Web page using IE. Users who run without administrative rights are more secure in general and should be less impacted than other users."
This update changes the version of IE9 in the About box as 9.0.1:
You can refer to Knowledge base article KB2530548 for this update.