Adobe has issued an update to its popular Flash Player plug-in as well as its Reader and Acrobat software for viewing and editing PDF (portable document format) files.
According to Adobe's security bulletin and advisories webpage, a critical vulnerability has been identified in the above mentioned software that can "... cause a crash and potentially allow an attacker to take control of the affected system."
Naturally, Adobe advises that users update their software to the latest version. The affected Flash Player versions are 10.2.152.33 and earlier (10.2.154.18 and earlier for Chrome users). The affected Acrobat and Reader versions are 10.0.1 and earlier 10.x and 9.x versions.
To find out what version of Flash Player you're currently running, visit the About Flash Player Page from your browser or right-click on running Flash content and select About Adobe Flash Player from the menu. If you have multiple browsers installed on your Mac, Adobe recommends you perform the check on each browser.