We have received reports from our readers that previously Microsoft Update, MBSA 2.0, and ITMU may not indicate the need to install additional package for this security update if you have Microsoft XML Core Services 4.0 SP2 (but MBSA 1.2.1 did). However, it seems that Microsoft has updated the scan files and is now able to detect the need of additional package.

Please visit Microsoft Update website to check if you need to install a critical-update, MSXML 4.0 SP2 Security Update (925672). It just appear to me today via MU site!