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.

ISNTSmtp directory in Trend Micro InterScan Messaging Security Suite (IMSS) 5.5 build 1183 and possibly other versions before 5.7.0.1121, uses insecure DACLs for critical files, which allows local users to gain SYSTEM privileges by modifying ISNTSysMonitor.exe.

Trend Micro ServerProtect 5.58, and possibly InterScan Messaging Security Suite and InterScan Web Security Suite, have a default configuration setting of "Do not scan compressed files when Extracted file count exceeds 500 files," which may be too low in certain circumstances, which allows remote attackers to bypass anti-virus checks by sending compressed archives containing many small files. NOTE: since this is related to a configuration setting that has an operational impact that might vary depending on the environment, and the product is claimed to report a message when the compressed file exceeds specified limits, perhaps this should not be included in CVE.

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.