Security Update 2007-001 was released a few days ago. It patches several security flaws in quicktime. It is for both Mac and Windows
Windows users must use the Apple Software Update application that came with QT 7 to get the patch, there is no new version you must download the patch.
To get the patch:
1) make sure you are running QT 7.1.3
2) open the apple software update application
3) select the update and click install
NOTE: If you opted not to install the Apple Software update program during the Quicktime or iTunes install you will not be able to get the patch
