Description: This security update resolves two privately reported vulnerabilities. The vulnerabilities could allow remote code execution if a user views a specially crafted Web page using Internet Explorer. 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. The security update addresses these vulnerabilities by modifying the way that Internet Explorer handles the error resulting in the exploitable condition.

Update type: Critical

Release date: February 10, 2009

Applies to: All versions

Knowledge base: support.microsoft.com/kb/961260

Download link: 32-bit | 64-bit

Comments: Note that the download links here are for IE7 on Vista SP1. If you are running IE8, or are running SP2, there are different downloads that can be found here.

Here are the specifics on the vulnerabilities covered by this update:

• Uninitialized Memory Corruption Vulnerability – CVE-2009-0075
• CSS Memory Corruption Vulnerability – CVE-2009-0076