Nothing too serious-looking in the list at first glance, but there was this gem:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-cpt?vs_f=Cisco%20Security%20Advisory&vs_cat=Security%20Intelligence&vs_type=RSS&vs_p=Cisco%20Network%20Academy%20Packet%20Tracer%20DLL%20Preload%20Vulnerability&vs_k=1
Yes, Packet Tracer has a vulnerability. Get it patched before you graduate to GNS3 and forget about it. C:-)