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 220.127.116.11 and earlier versions for Windows and Macintosh
Adobe Flash Player 18.104.22.1689 and earlier versions for Linux
Adobe AIR 22.214.171.124 SDK and earlier versions
Adobe AIR 126.96.36.199 SDK & Compiler and earlier versions
Adobe AIR 188.8.131.52 and earlier versions for Android
Adobe AIR 184.108.40.206 and earlier versions for Windows and Macintosh
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.