Microsoft Security Bulletin MS13-008 - Critical

Today, we are releasing an out-of-band security update to fully address the issue described in Security Advisory 2794220. While we have still seen only a limited number of customers affected by the issue, the potential exists that more customers could be affected in the future.

This security update resolves one publicly disclosed vulnerability in Internet Explorer versions 6, 7, and 8. The vulnerability could allow remote code execution if a user views a specially crafted Web page using Internet Explorer. An attacker who successfully exploited this vulnerability could gain the same user rights as the current 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.

This security update is rated Critical for Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on Windows clients and Moderate for Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on Windows servers. Internet Explorer 9 and Internet Explorer 10 are not affected. For more information, see the full bulletin.

Most customers have automatic updating enabled and will not need to take any action because this security update will be downloaded and installed automatically. Customers who have not enabled automatic updating need to check for updates and install this update manually. For information about specific configuration options in automatic updating, see Microsoft Knowledge Base Article 294871.

For administrators and enterprise installations, or end users who want to install this security update manually, Microsoft recommends that customers apply the update immediately using update management software, or by checking for updates using the Microsoft Update service.

— Tyson Storey, Program Manager, Internet Explorer