Critical buffer overflow vulnerabilities exist in Adobe Illustrator CS4 (14.0.0) and Adobe Illustrator CS3 (=<13.0.3) on the Macintosh and Windows platforms which can lead to malicious code execution. The update process for the Mac requires you to alter the Package contents. Incase you do not realize an Application on the Mac is actually a Package (folder) which contains the contents of the application. You can open Terminal and cd into any application to view the contents. In Terminal you can use "open ." to open the folder in viewer.
Users and Administrators should perform the update as described in the attached reference. It does not use the Adobe Updater proving that there is much work that needs to be done by Adobe to improve the process.