Microsoft is to release five bulletins on the next Patch Tuesday with all rated as critical.

An advance notification claimed that all of the bulletins affect Microsoft Windows and patch a remote code execution vulnerability.

Andrew Clarke, senior VP at Lumension, said: “Microsoft is rolling out five new critical patches for September's Patch Tuesday, all of which address core Microsoft operating system platforms. Of the five critical patches, two will require mandatory restarts causing some level of disruption within the enterprise.”

Clarke further claimed that all three of Microsoft's server platforms (2000, 2003 and 2008) have critical vulnerabilities; therefore, both server and desktop management IT groups will be impacted this month.

He also believed that more patches will be added though, particularly with various vulnerabilities diagnosed.

“Leading the pack this month, however, is Microsoft Vista with four critical vulnerabilities. Given the significant amount of code shared between Vista and Windows 7, it is likely that some of these security bulletins could apply to Windows 7 or Server 2008 R2, but this is not addressed in the information released today. Companies with access to the RTM builds will want to track the bulletins in the future to see if they are updated to apply to Windows 7 and Windows Release 2,” said Clarke.