Today we released one security bulletin, MS09-017, affecting our PowerPoint products. This update addresses several vulnerabilities including the issue described in Microsoft Security Advisory 969136. In that advisory, we noted that we were aware of limited, targeted attacks.
The security of our customers is important to us and due to these active attacks, we have released the updates for one product line (all versions of Microsoft Office for Windows) so that the majority of our customers can protect their systems. We are able to do this because the updates were ready within the predictable release cycle for the entire product line. Updates for the additional products (Microsoft Office 2004 for Mac, Microsoft Office 2008 for Mac, Open XML File Format Converter for Mac, Microsoft Works 8.5 and Microsoft Works 9.0) will be released when testing is complete and we can ensure high quality. When ready, we will revise the bulletin and notify customers.
For more details see May 2009 Bulletin Release on the Microsoft Security Response Center blog.
J.C. Hornbeck | Manageability Knowledge Engineer