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updated 6/13/2011 7:29:46 PM ET 2011-06-13T23:29:46

Microsoft's monthly batch of security updates is set to fix 16 separate vulnerabilities, nine of which are labeled "critical" by the software giant.

Microsoft's Patch Tuesday addresses security flaws in Microsoft Windows, Excel, Office and Internet Explorer, Microsoft wrote in a blog posting. (Msnbc.com is a joint venture of Microsoft and NBC Universal.)

(All of the critical bugs allow an attacker to exploit the programs by remotely executing code on machines running the flawed software.

Coinciding with Patch Tuesday, Adobe is also releasing security updates tomorrow for critical bugs lurking in Adobe Reader X (10.0.1) for Windows, Adobe Reader X (10.0.3) for Mac, and Adobe Acrobat X (10.0.3) for Windows and Mac.

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