(MS11-018) Cumulative Security Update for Internet Explorer (2497640)

This security update resolves four privately reported vulnerabilities and one publicly disclosed vulnerability in certain versions of Internet Explorer.

The most severe vulnerabilities could allow remote code execution if a user views a specially crafted Web page using Internet Explorer. An attacker who successfully exploited any of these vulnerabilities could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.