Adobe has issued another SecurityAdvisory (APSA11-02) in regards to a critical vulnerability that exists in Flash Player 10.2.153.1 and earlier for Windows, Mac, Linux and Solaris, as well as Adobe Flash Player 10.2.156.12 and earlier for Android, and the Authplay.dll component that ships with Adobe Reader and Acrobat X (10.x) and earlier for Windows and Mac operating systems. This vulnerability (CVE-2011-0611) could cause a crash and potentially allow an attacker to take control of the affected system.
There are reports that this vulnerability is being exploited in the wild in targeted attacks via a Flash (.swf) file embedded in a Microsoft Word (.doc) file delivered as an email attachment. At this time, Adobe is not aware of any attacks via PDF targeting Adobe Reader and Acrobat.
Because Adobe Reader X Protected Mode would prevent an exploit of this kind from executing, Adobe is planning to address this issue in Reader X for Windows with their June 14 security update.