I usually don't post about Windows security holes on this list, but this is a massive one that can potentially wreak havoc to desktop clients should your users visit the wrong websites or receive the wrong e-mail attachment. Please be sure to upgrade your Flash plugin. It appears that Macromedia released a new Flash plugin for Linux several days ago too.
http://idg.net/ic_933538_1794_9-10000.html "Security flaw found in Shockwave Flash" http://www.macromedia.com/shockwave/download/frameset.fhtml?P1_Prod_Version=ShockwaveFlash Macromedia Flash Download - will auto-detect your operating system
