This attack could pose a serious security threat. You should take immediate action to stop any damage or prevent further damage from happening.
This signature detects attempts to exploit a stack based buffer overflow vulnerability in Adobe Flash Player.
Adobe Flash Player is a multimedia application for Microsoft Windows, Mozilla, and Apple technologies.
Adobe Flash Player is prone to a stack-based buffer-overflow vulnerability because it fails to properly bounds-check user-supplied data before copying it into an insufficiently sized buffer. Specifically, this issue occurs when 'parseFloat' on a specific datatype is called.
Attackers can exploit this issue to execute arbitrary code within the context of the affected application. Failed exploit attempts likely result in denial-of-service conditions.