CVE-2007-6436: Justsystem Ichitaro

High severity, CVSS 9.3. EPSS: 4.1% chance of exploitation in the next 30 days.

Stack-based buffer overflow in JSGCI.DLL in JustSystems Ichitaro 2005, 2006, and 2007 allows user-assisted remote attackers to execute arbitrary code via a crafted document, as actively exploited in December 2007 by the Tarodrop.F trojan. NOTE: some of these details are obtained from third party information.

Affected products

• Justsystem Ichitaro: version 2005 only; version 2006 only; version 2007 only

Published 2007-12-18. Last modified 2026-06-16.