This indicates an attack attempt against a Stack Overflow vulnerability in Adobe Flash Player.
The vulnerability is caused by an error when the vulnerable software handles a malicious flash file. It allows a remote attacker to execute arbitrary code via sending a crafted flash file.
Adobe Flash Player 22.214.171.124 and earlier versions
Adobe AIR 126.96.36.199
System Compromise: Remote attackers can gain control of vulnerable systems.
Refer to the vendor's web site for suggested workaround.