Buffer overflow in the Trend Micro Scan Engine 8.000 and 8.300 before virus pattern file 4.245.00, as used in other products such as Cyber Clean Center (CCC) Cleaner, allows remote attackers to execute arbitrary code via a malformed UPX compressed executable.

Heap-based buffer overflow in Trend Micro AntiVirus Library VSAPI before 7.510, as used in multiple Trend Micro products, allows remote attackers to execute arbitrary code via a crafted ARJ file with long header file names that modify pointers within a structure.

Buffer overflow in pop3trap.exe for PC-cillin 2000, 2002, and 2003 allows local users to execute arbitrary code via a long input string to TCP port 110 (POP3).

Trend Micro PC-Cillin does not restrict access to its internal proxy port, allowing remote attackers to conduct a denial of service.