This indicates an attack attempt to exploit a Buffer Overflow vulnerability in AT&T Connect Participant Application.
The vulnerability is due to an error when the vulnerable software handles a malformed SVT file. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application, via a crafted SVT file.
AT&T Connect Participant Application before 9.5.51 on Windows
System Compromise: Remote attackers can gain control of vulnerable systems.
Upgrade to the latest version available from the website.