This indicates a possible attack against a memory corruption vulnerability in Adobe Flash Player.
This vulnerability is due to an error when the vulnerable software handles a malformed Flash file. An attacker may exploit this to execute arbitrary code.
Adobe Flash Player 10.2.159.1 and earlier versions for Windows, Macintosh,
Linux and Solaris operating systems.
Adobe Flash Player 10.2.154.28 and earlier versions for Chrome.
Adobe Flash Player 10.2.157.51 and earlier versions for Android.
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the patch supplied by the vendor: