This indicates an attack attempt to exploit a Memory Corruption vulnerability in Adobe Flash Player.
The vulnerability is due to an error when the vulnerable software handles a maliciously crafted SWF file. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application, via a crafted SWF file.
Adobe Flash Player 11.3.300.271 and earlier versions for Windows, Macintosh, Linux operating systems.
Adobe Flash Player 22.214.171.124 and earlier versions for Android 4.x, and Adobe Flash Player 126.96.36.199 and earlier versions for Android 3.x and 2.x
System Compromise: Remote attackers can gain control of vulnerable systems.
Refer to the vendor's advisory for updates: