Intel Driver Update Utility before 2.4 retrieves driver updates in cleartext, which makes it easier for man-in-the-middle attackers to execute arbitrary code via a crafted file.
https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00048&languageid=en-fr
http://www.securityfocus.com/archive/1/537327/100/0/threaded
http://www.coresecurity.com/advisories/intel-driver-update-utility-mitm