CVE-2008-3864: Trend Micro Internet Security 2007

Medium severity, CVSS 5.0. EPSS: 2.1% chance of exploitation in the next 30 days.

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, allows remote attackers to cause a denial of service (service crash) via a packet with a large 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.