The web administration interface for Interscan VirusWall 3.6.x and earlier does not use encryption, which could allow remote attackers to obtain the administrator password to sniff the administrator password via the setpasswd.cgi program or other HTTP GET requests that contain base64 encoded usernames and passwords.

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.

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.

InterScan VirusWall 3.6 for Linux and 3.52 for Windows allows remote attackers to bypass virus protection and possibly execute arbitrary code via HTTP 1.1 chunked transfer encoding.

Interscan VirusWall 3.6.x and earlier follows symbolic links when uninstalling the product, which allows local users to overwrite arbitrary files via a symlink attack.