With hackers exploiting unpatched vulnerabilities in its Windows and Office software, Microsoft plans to issue 11 security updates next Tuesday.Some of the Office and Windows updates will be for critical flaws that could be exploited by attackers with no action on the part of users. Six of the patches will be for Windows, and four of them will be for Office, Microsoft said Thursday in a note on its website. That note can be found here.\u00a0The 11th update will be for a flaw in Microsoft\u2019s .Net framework, which is considered less severe than the critical Windows and Office patches.Hackers have been keeping Microsoft\u2019s Security Response Center busy this past month. Microsoft generally issues its security patches on the second Tuesday of every month, but last week the company was forced to issue a rare, "out-of-cycle" security patch after criminals began exploiting a flaw in Internet Explorer\u2019s vector markup language rendering engine. And security experts have also warned of cyberattacks based on unpatched flaws in PowerPoint, Word 2000 and in an ActiveX control (called WebViewFolderIcon) used by the Windows\u2019 graphical user interface software.The WebViewFolderIcon flaw will be patched Tuesday, Microsoft said. Attacks that take advantage of this flaw have been seen on the Internet, the SANS Internet Storm Center warned earlier this week. The SANS warning can be found here.-Robert McMillan, IDG News Service (San Francisco Bureau)This article is posted on our Microsoft Informer page.\u00a0For more news on the Redmond, Wash.-based powerhouse, keep checking in.Check out our CIO News Alerts and Tech Informer pages for more updated news coverage.