Adobe issued a security bulletin on 4th February 2014, and also issues a emergency security update for the flash player. The Security bulletin says These updates address a critical vulnerability that could potentially allow an attacker to remotely take control of the affected system.
The updates are for the flash player versions 184.108.40.206(or earlier) for Windows and Mac and 220.127.116.115 (or earlier) for Linux.
Read the security bulletin here
So the users of Mac and Windows will have to update the flash players to version 18.104.22.168 and Linux users need to update to 22.214.171.1246. If you are using latest versions of Chrome or IE the flash player will get updated automatically. Otherwise update your flash player manually.
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