Adobe Reader and Acrobat Quarterly Updates Now Available
Adobe has released security updates for Adobe Reader and Acrobat XI (11.0.02) and earlier versions for Windows and Macintosh, and Adobe Reader 9.5.4 and earlier 9.x versions for Linux. You can update your system to the latest versions from the built-in updater or by downloading the patch from the Adobe website. IT professionals can get more details on the update and deploying it from the Enterprise Toolkit for Acrobat products.
For more details please review the official security bulletin.