<A HREF="http://www.theregister.co.uk/2008/07/22/blackberry_vuln_patch/">Research in Motion</A> has issued a patch for a serious security flaw that puts businesses using the BlackBerry at risk.
The vulnerability affects the BlackBerry Enterprise Server versions 4.1.3 through 4.1.5 and BlackBerry Professional Software 4.1.4. It resides in a component that processes PDF files.