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Vulnerability record · CVE-2007-5687 · published 28 October 2007

CVE-2007-5687: Justsystem ichitaro memory buffer overflow vulnerability

JJustsystem · Ichitaro

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 arbitrary code via a long (1) pard field or (2) font name in the fcharset0 field, which is not properly handled in (a) JSTARO4.OCX; or (3) a long title, which is not properly handled by (b) TJSVDA.DLL.

9.3 CVSS 2.0 High EPSS 5.7% · top 7.2% CWE-119 · Memory buffer overflow
9.3CVSS 2.0 base score
5.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
28References
16 Jun 2026Last modified by NVD

Description

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 arbitrary code via a long (1) pard field or (2) font name in the fcharset0 field, which is not properly handled in (a) JSTARO4.OCX; or (3) a long title, which is not properly handled by (b) TJSVDA.DLL.

AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://jvn.jp/jp/JVN%2329211062/index.html
http://jvn.jp/jp/JVN%2332981509/index.html
http://jvn.jp/jp/JVN%2350495547/index.html
http://osvdb.org/39394
http://secunia.com/advisories/27393 PatchVendor Advisory
http://www.fourteenforty.jp/research/advisory.cgi?FFRRA-20071025-1
http://www.fourteenforty.jp/research/advisory.cgi?FFRRA-20071025-2
http://www.fourteenforty.jp/research/advisory.cgi?FFRRA-20071025-3
http://www.ipa.go.jp/security/vuln/200710_Ichitaro.html
http://www.justsystems.com/jp/info/pd7004.html Patch
http://www.securityfocus.com/bid/26206
http://www.vupen.com/english/advisories/2007/3623
https://exchange.xforce.ibmcloud.com/vulnerabilities/38129
https://exchange.xforce.ibmcloud.com/vulnerabilities/38130
http://jvn.jp/jp/JVN%2329211062/index.html
http://jvn.jp/jp/JVN%2332981509/index.html
http://jvn.jp/jp/JVN%2350495547/index.html
http://osvdb.org/39394
http://secunia.com/advisories/27393 PatchVendor Advisory
http://www.fourteenforty.jp/research/advisory.cgi?FFRRA-20071025-1
http://www.fourteenforty.jp/research/advisory.cgi?FFRRA-20071025-2
http://www.fourteenforty.jp/research/advisory.cgi?FFRRA-20071025-3
http://www.ipa.go.jp/security/vuln/200710_Ichitaro.html
http://www.justsystems.com/jp/info/pd7004.html Patch
http://www.securityfocus.com/bid/26206
http://www.vupen.com/english/advisories/2007/3623
https://exchange.xforce.ibmcloud.com/vulnerabilities/38129
https://exchange.xforce.ibmcloud.com/vulnerabilities/38130

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2008-0223Justsystem ichitaro memory buffer overflow vulnerabilityBuffer overflow in JustSystems JSFC.DLL, as used in multiple JustSystems products such as Ichitaro, allows remote attackers to execute arbitrary code…EPSS 4.8%9.3CVE-2007-6436Justsystem ichitaro memory buffer overflow vulnerabilityStack-based buffer overflow in JSGCI.DLL in JustSystems Ichitaro 2005, 2006, and 2007 allows user-assisted remote attackers to execute arbitrary code…EPSS 4.1%7.5CVE-2006-4326Justsystem formliner memory buffer overflow vulnerabilityStack-based buffer overflow in Justsystem Ichitaro 9.x through 13.x, Ichitaro 2004, 2005, 2006, and Government 2006; Ichitaro for Linux; and FormLine…EPSS 4.6%6.8CVE-2007-4246Justsystem ichitaro vulnerabilityUnspecified vulnerability, possibly a buffer overflow, in Justsystem Ichitaro 2007 and earlier allows remote attackers to execute arbitrary code via …EPSS 3.1%6.8CVE-2006-6400Justsystem hanako memory buffer overflow vulnerabilityBuffer overflow in JustSystems Hanako 2004 through 2006, Hanako viewer 1.x, Ichitaro 2004, Ichitaro 2005, Ichitaro Lite2, Ichitaro viewer 4.x, and Sa…EPSS 3.1%5.1CVE-2006-5424Justsystem ichitaro vulnerabilityUnspecified vulnerability in Justsystem Ichitaro 2006, 2006 trial version, and Government 2006 allows remote attackers to execute arbitrary code via …EPSS 2.9%9.5CVE-2026-88772Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer VulnerabilityVulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 F…KEV8.8CVE-2026-8452Citrix NetScaler ADC and Gateway memory buffer overflow causes DoSCVE-2026-8452 is a memory buffer overflow (CWE-119) in Citrix NetScaler ADC and NetScaler Gateway that leads to unpredictable or erroneous behavior a…KEVEPSS 1.0%analysed

Source: NIST National Vulnerability Database (record CVE-2007-5687), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.