Trend Micro InterScan VirusWall HTTP proxy 3.6 with the "Skip scanning if Content-length equals 0" option enabled allows malicious web servers to bypass content scanning via a Content-length header set to 0, which is often ignored by HTTP clients.

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.