Microsoft Windows JavaScript Integer Overflow Remote Code Execution Vulnerability

A remote code execution vulnerability exists in the way that the JScript and VBScript engines calculate the size of an object in memory during a copy operation. The vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.