CVE-2008-3865: Trend Micro Internet Security 2007

High severity, CVSS 10.0. EPSS: 6.4% chance of exploitation in the next 30 days.

Multiple heap-based buffer overflows in the ApiThread function in the firewall service (aka TmPfw.exe) in Trend Micro Network Security Component (NSC) modules, as used in Trend Micro OfficeScan 8.0 SP1 Patch 1 and Internet Security 2007 and 2008 17.0.1224, allow remote attackers to execute arbitrary code via a packet with a small value in an unspecified size field.

Affected products

• Trend Micro Internet Security 2007: any version
• Trend Micro Internet Security 2008: version 17.0.1224 only
• Trend Micro OfficeScan: version 8.0 only

Published 2009-01-21. Last modified 2026-06-16.