Microsoft Internet Explorer 6 allows remote attackers to cause a denial of service (crash) by declaring the sourceURL attribute on an uninitialized DirectAnimation.StructuredGraphicsControl ActiveX Object, which triggers a null dereference.
https://exchange.xforce.ibmcloud.com/vulnerabilities/27565
https://euvd.enisa.europa.eu/vulnerability/EUVD-2006-3423
http://www.vupen.com/english/advisories/2006/2687
http://www.securityfocus.com/bid/18855
http://browserfun.blogspot.com/2006/07/mobb-6-structuredgraphicscontrol.html