You know the rule: a new month, a new Tuesday patch. For October Microsoft announced already seven security bulletins, which will be delivered via its Automatic Updates service or can be downloaded from Microsoft’s Update website.

Four of these seven bulletins are rated as critical, which in Microsoft’s security rating system means that the vulnerabilities corrected by the patches can be exploited without users’s intervention.

The other three bulletins are rated as important, which means that Microsoft will fix the vulnerabilities whose exploitation could result in compromise of the confidentiality, integrity, or availability of users data, or of the integrity or availability of processing resources.

According to Microsoft’s advanced notification bulletins the vulnerabilities to be fixes reside in Windows XP, Windows Vista, Internet Explorer, Office, Outlook Express and Windows Mail.

Windows Vista will get two critical updates and one patch rated as important, while the other two critical bulletins are destined for Office, Outlook Express and Windows Mail. As usual Microsoft will release an update for Windows Malicious Software Removal Tool.