Source: http://www.thypcdoc.com/2015/07/warning-hackers-could-take-over-your-pc.html

Security firm Symantec has issued a warning to PC users to update or disable Adobe Flash, following the discovery of a severe vulnerability in the popular browser plugin to which there is no fix yet. Adobe has confirmed the existence of the problem and has categorized it as "critical". Attackers who exploit it would be able to take control of PCs and run malicious code.

Adobe has swung into action and has just released an update. The most recent affected version of Adobe Flash Player for Windows and OS X is 18.0.0.194, and for Linux is 11.2.202.468 whereas the updates are numbered 18.0.0.203 (Windows and OS X) and 11.2.202.481 (Linux). Users should verify that they update to at least these versions as soon as possible.

Nevertheless, there has been plenty of time for attackers to try and target PCs around the world. Both Adobe and Symantec have strongly recommended that users disable Flash altogether until they can download the updates.

http://www.thypcdoc.com/2015/07/warning-hackers-could-take-over-your-pc.html