Justsystem is a vendor whose vulnerability footprint concentrates in document and content-management applications, particularly its Ichitaro word processor and related products such as Formliner and Hanako, which serve primarily Japanese-language office and publishing markets. The recurring weakness pattern centers on memory-buffer handling issues characteristic of native office-document processors, where parsing complexity and legacy codec support create a persistent surface for out-of-bounds access flaws. Current severity, exploitation activity, and exposure counts are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Justsystem over time
Signals from CVEs in this vendor scope (7 CVEs).
7 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2007-5687HIGH Multiple buffer overflows in the rich text processing functionality in JustSystems Ichitaro 2004 through 2007, 11 through 13, and other versions allow remote attackers to execute a | Oct 28, 2007 | 9.3 | 25 | NO | NO |
CVE-2008-0223HIGH Buffer overflow in JustSystems JSFC.DLL, as used in multiple JustSystems products such as Ichitaro, allows remote attackers to execute arbitrary code via a crafted .JTD file. | Jan 10, 2008 | 9.3 | 24 | NO | NO |
CVE-2007-6436HIGH 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 act | Dec 18, 2007 | 9.3 | 24 | NO | NO |
CVE-2006-4326HIGH Stack-based buffer overflow in Justsystem Ichitaro 9.x through 13.x, Ichitaro 2004, 2005, 2006, and Government 2006; Ichitaro for Linux; and FormLiner before 20060818 allows remote | Aug 24, 2006 | 7.5 | 21 | NO | NO |
CVE-2007-4246MEDIUM Unspecified vulnerability, possibly a buffer overflow, in Justsystem Ichitaro 2007 and earlier allows remote attackers to execute arbitrary code via a modified document, as activel | Aug 8, 2007 | 6.8 | 19 | NO | NO |
CVE-2006-6400MEDIUM Buffer overflow in JustSystems Hanako 2004 through 2006, Hanako viewer 1.x, Ichitaro 2004, Ichitaro 2005, Ichitaro Lite2, Ichitaro viewer 4.x, and Sanshiro 2005 allows remote attac | Dec 10, 2006 | 6.8 | 19 | NO | NO |
CVE-2006-5424MEDIUM Unspecified vulnerability in Justsystem Ichitaro 2006, 2006 trial version, and Government 2006 allows remote attackers to execute arbitrary code via a modified document, possibly b | Oct 20, 2006 | 5.1 | 16 | NO | NO |
Signals from CVEs in this vendor scope (7 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Justsystem.
Media articles that mention a CVE ID that affects a product developed by Justsystem — matched by CVE ID, not by vendor name.