CVE-2012-1879
Microsoft Internet Explorer 6 through 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by attempting to access an undefined memory location, aka "insertAdjacentText Remote Code Execution Vulnerability."
Date published : 2012-06-12
http://www.us-cert.gov/cas/techalerts/TA12-164A.html
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-037