User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaws exists within myCIOScn.dll. First, the MyCioScan.Scan.ReportFile parameter exposed via ActiveX can be set to any arbitrary filename including sensitive system files and directories. Secondly, the parameter to the MyCioScan.Scan.Start() method can be carefully crafted as to inject script constructs into the log file written at the end of the AV scan. The combination of these flaws can be leveraged by a remote attacker to execute arbitrary code under the context of the user running the browser.