Adobe has released security updates for Adobe Flash Player 12.0.0.43 and earlier versions for Windows and Macintosh and Adobe Flash Player 11.2.202.335 and earlier versions for Linux. These updates address a critical vulnerability that could potentially allow an attacker to remotely take control of the affected system.
Go to Adobe’s security advisory here – http://helpx.adobe.com/security/products/flash-player/apsb14-04.html