Description: This update resolves a vulnerability in the Microsoft Malware Protection Engine that could allow remote code execution.

Update type: Critical

Release date: February 13, 2007

Applies to: All versions

Knowledge base: support.microsoft.com/kb/932135

Download link: Defender will update itself, Engine Version 1.1.2101.0 contains the patch. To check your version, in Defender, click the ‘Help Options’ arrow next to the ‘Help’ icon and choose About Windows Defender. If it’s not up to date, choose Check for Updates from the ‘Help Options’ arrow.

Comments: Not a ‘Vista’ issue specifically, but all versions of Vista come with Defender, so they will all likely be affected.