Microsoft has said that it will be releasing two security bulletins today, on Patch Tuesday, to fix vulnerabilities in Windows and Office.

Here’s what we know from Microsoft's advance notification for May: both of the updates are rated critical, and will address remote execution vulnerabilities; the bulletins affect Microsoft Windows 2000, XP, Vista, Windows 7, Server 2003 and Server 2008, Microsoft Office, and Microsoft Visual Basic for Application and Visual Basic for Applications software development kit.

Need help on understanding patches, and updating your system? Learn more in the latest issue of Lavasoft News, where we take a look at why it’s important to keep your system and software updated – and how to do it.