This indicates an attempt to exploit a buffer overflow vulnerability in Adobe Flash Player.
The heap based buffer overflow vulnerability is a result of errors that occur when handling malformed SWF files with embedded JPG images. As a result a remote attacker may be able to gain control of a vulnerable system.
Impact
System Compromise: remote attackers can gain control of vulnerable systems.
Affected Products
Adobe Flash Player 9.0.48.0, 8.0.35.0, 7.0.70.0, and prior versions.