Microsoft Internet Explorer 6 through 9, and 10 Consumer Preview, allows remote attackers to bypass Protected Mode or cause a denial of service (memory corruption) by leveraging access to a Low integrity process, as demonstrated by VUPEN during a Pwn2Own competition at CanSecWest 2012.

Microsoft Internet Explorer 6 through 9 does not properly perform copy-and-paste operations, which allows user-assisted remote attackers to read content from a different (1) domain or (2) zone via a crafted web site, aka "Copy and Paste Information Disclosure Vulnerability."

Microsoft Internet Explorer 7 through 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing a deleted object, aka "HTML Layout Remote Code Execution Vulnerability."

Microsoft Internet Explorer 6 through 9 does not properly use the Content-Disposition HTTP header to control rendering of the HTTP response body, which allows remote attackers to read content from a different (1) domain or (2) zone via a crafted web site, aka "Content-Disposition Information Disclosure Vulnerability."

The XSS Filter in Microsoft Internet Explorer 8 allows remote attackers to read content from a different (1) domain or (2) zone via a "trial and error" attack, aka "XSS Filter Information Disclosure Vulnerability."

The Cascading Style Sheets (CSS) implementation in Microsoft Internet Explorer 8.0 and earlier does not properly handle the :visited pseudo-class, which allows remote attackers to obtain sensitive information about visited web pages via a crafted HTML document, a related issue to CVE-2010-2264.

The JavaScript implementation in Microsoft Internet Explorer 8.0 and earlier does not properly restrict the set of values contained in the object returned by the getComputedStyle method, which allows remote attackers to obtain sensitive information about visited web pages by calling this method.

Microsoft Internet Explorer 6 through 9 does not prevent capture of data about the times of Same Origin Policy violations during IFRAME loading attempts, which makes it easier for remote attackers to determine whether a document exists in the browser cache via crafted JavaScript code.

Microsoft Internet Explorer 6 through 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code via an attempted access to a virtual function table after corruption of this table has occurred, aka "Virtual Function Table Corruption Remote Code Execution Vulnerability."

Microsoft Internet Explorer 6 through 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing a deleted object, aka "Option Element Remote Code Execution Vulnerability."