This indicates an attack attempt to exploit a Double Free vulnerability in ACDSee FotoSlate.
The vulnerability is caused by an error that occurs when the software handles a malicious "PLP" file. A remote attacker may exploit this to execute arbitrary code via a crafted "PLP" file.
ACDSee FotoSlate version 4.0 Build 146
System Compromise: Remote attackers can gain control of vulnerable systems.
Currently we are not aware of any vendor supplied patch for this issue.