Unspecified vulnerability in JustSystems Ichitaro 2004 through 2009, Ichitaro Government 2006 through 2009, and Just School 2008 and 2009 allows remote attackers to execute arbitrary code via unknown vectors related to "product character attribute processing" for a document.

Unspecified vulnerability in JustSystems Ichitaro and Ichitaro Government 2006 through 2010 allows user-assisted remote attackers to execute arbitrary code via a crafted font file.

Stack-based buffer overflow in JustSystems Corporation Ichitaro 13, 2004 through 2009, Viewer 2009 19.0.1.0 and earlier, and other versions allows context-dependent attackers to execute arbitrary code via a crafted Rich Text File (RTF), related to "pvpara ffooter."

Unspecified vulnerability in JustSystems Ichitaro 13, 2004 through 2008, Lite2, and Ichitaro viewer 5.1.5.0 and earlier allows remote attackers to execute arbitrary code via a crafted file, as exploited in the wild by Trojan.Tarodrop.H in March 2009.