AMD.ATI answer:

The market recently discovered a potential security vulnerability that could impact AMD’s Catalyst software package. After immediate investigation, AMD determined that a small section of code in one the files of our installer package file is potentially vulnerable. The AMD plan is to provide a new ATI Catalyst package no later than Monday, Aug. 13, 2007, that resolves this vulnerability. We strongly recommend that desktop ATI Radeon graphics users update to Catalyst version 7.8 once it is available on http://ati.amd.com/support/driver.html. AMD and Microsoft are also investigating additional distribution channels for this update. This vulnerability was not exclusive to AMD.”

so fix in next ~48hr