Microsoft Internet Explorer 6.0 does not properly handle Drag and Drop events, which allows remote user-assisted attackers to execute arbitrary code via a link to an SMB file share with a filename that contains encoded ..\ (%2e%2e%5c) sequences and whose extension contains the CLSID Key identifier for HTML Applications (HTA), aka "Folder GUID Code Execution Vulnerability." NOTE: directory traversal sequences were used in the original exploit, although their role is not clear.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A318
https://exchange.xforce.ibmcloud.com/vulnerabilities/27456
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-045
http://www.vupen.com/english/advisories/2006/2553
http://www.us-cert.gov/cas/techalerts/TA06-220A.html
http://www.securityfocus.com/bid/19389
http://www.kb.cert.org/vuls/id/655100
http://securitytracker.com/id?1016388
http://secunia.com/advisories/20825
http://lists.grok.org.uk/pipermail/full-disclosure/2006-June/047398.html