Adobe has released an unscheduled new version of Flash, fixing a critical security issue for Flash running on Windows, Macintosh and Linux that could cause the application to crash and could potentially allow an attacker to take control of the affected system. Please update your systems soon.
Windows users should update to 18.104.22.1686.
Macintosh users should update to 22.214.171.1246.
Linux users should update to 126.96.36.1990.
Also, if you are running Windows and using both Internet Explorer and another web browser (i.e. Firefox, Opera or Safari), you will need to install the update twice; once using Internet Explorer and again with the other browser(s). Internet Explorer uses ActiveX for Flash, and the other browsers use a plugin. (Chrome on all platforms, and Internet Explorer 11 on Windows 8 Update 1, include a feature to automatically update Flash.)
For more information and links to software downloads, see http://helpx.adobe.com/security/products/flash-player/apsb15-03.html, and for direct links to software downloads see http://www.adobe.com/products/flashplayer/distribution3.html