Critical vulnerabilities have been identified in Adobe Flash Player 10.3.183.7 and earlier versions for Windows, Macintosh, Linux and Solaris, and Adobe Flash Player 10.3.186.6 and earlier versions for Android. These vulnerabilities could cause a crash and potentially allow an attacker to take control of the affected system.

There are reports that one of these vulnerabilities (CVE-2011-2444) is being exploited in the wild in active targeted attacks designed to trick the user into clicking on a malicious link delivered in an email message. This universal cross-site scripting issue could be used to take actions on a user’s behalf on any website or webmail provider if the user visits a malicious website.

Adobe recommends users of Adobe Flash Player 10.3.183.7 and earlier versions for Windows, Macintosh, Linux and Solaris update to Adobe Flash Player 10.3.183.10. Users of Adobe Flash Player for Android 10.3.186.6 and earlier versions should update to Adobe Flash Player for Android 10.3.186.7.

Users running browsers other than Chrome should download the patched version of Flash Player from Adobe’s site.

More info at PC World

If you ignore this update, your computer is left vulnerable to hackers that silently try to attack your computer to take control of it or steal money from you.