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.

Directory traversal vulnerability in Trend Micro Interscan Web Viruswall in InterScan VirusWall 3.5x allows remote attackers to read arbitrary files via a .. (dot dot) in the URL.

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 3.52 for Windows allows remote attackers to bypass virus protection and possibly execute arbitrary code via HTTP 1.1 gzip content encoding.

Trend Micro InterScan VirusWall for Windows NT 3.52 does not record the sender's IP address in the headers for a mail message when it is passed from VirusWall to the MTA, which allows remote attackers to hide the origin of the message.

SMTP content filter engines, including (1) GFI MailSecurity for Exchange/SMTP before 7.2, (2) InterScan VirusWall before 3.52 build 1494, (3) the default configuration of MIMEDefang before 2.21, and possibly other products, do not detect fragmented emails as defined in RFC2046 ("Message Fragmentation and Reassembly") and supported in such products as Outlook Express, which allows remote attackers to bypass content filtering, including virus checking, via fragmented emails of the message/partial content type.

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 3.52 build 1462 allows remote attackers to bypass virus protection via e-mail messages with headers that violate RFC specifications by having (or missing) space characters in unexpected places (aka "space gap"), such as (1) Content-Type :", (2) "Content-Transfer-Encoding :", (3) no space before a boundary declaration, or (4) "boundary= ", which is processed by Outlook Express.

Buffer overflow in smtpscan.dll for Trend Micro InterScan VirusWall 3.51 for Windows NT has allows remote attackers to execute arbitrary code via a certain configuration parameter.