CVE-2012-0155
Microsoft Internet Explorer 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing a deleted object, aka "VML Remote Code Execution Vulnerability."
Date published : 2012-02-14
http://www.us-cert.gov/cas/techalerts/TA12-045A.html
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-010