What it is
CVE-2006-4326 is an unauthenticated vulnerability affecting Justsystem Ichitaro. Stack-based buffer overflow in Justsystem Ichitaro 9.x through 13.x, Ichitaro 2004, 2005, 2006, and Government 2006; Ichitaro for Linux;...
Vulnerability report
Exploited in the wild
High confidence
Not in CISA KEV
CVE-2006-4326
Ichitaro
Justsystem / Ichitaro
- Severity
- CVSS 7.5 · High
- Confidence
- High
- Exploit status
- Exploited in the wild
- EPSS
- 4.5%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.
Who is affected?
Justsystem / Ichitaro.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Ichitaro
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 attackers to execute arbitrary code via long Unicode strings in a crafted document, as being actively exploited by malware such as Trojan.Tarodrop.
NOTE: some details are obtained from third party information.
- Published
- 24 Aug 2006
- Exploitation Reported
- 24 Aug 2006
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- —
Tags
linux
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2006-4326
- 21552 secunia.com · Third-Party Advisory http://secunia.com/advisories/21552
- ADV-2006-3332 vupen.com · VDB Entry http://www.vupen.com/english/advisories/2006/3332
- ichitaro-document-bo(28484) exchange.xforce.ibmcloud.com · VDB Entry https://exchange.xforce.ibmcloud.com/vulnerabilities/28484
- 19550 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/19550
- symantec.com/enterprise/security_response/weblog/2006/08/... symantec.com · CVE Record http://www.symantec.com/enterprise/security_response/weblog/2006/08/j...
- symantec.com/enterprise/security_response/writeup.jsp symantec.com · CVE Record http://www.symantec.com/enterprise/security_response/writeup.jsp?doci...
- justsystem.co.jp/info/pd6002.html justsystem.co.jp · CVE Record http://www.justsystem.co.jp/info/pd6002.html
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
CVE
Independent exploitation attestation added to the KEV Intelligence record.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2006-08-24 01:00 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 0
- User-Agents
- 0
Raw values available in Pro and Enterprise.
Scanner coverage
No scanner integrations recorded yet.
Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Risk and context
Severity, weaknesses, and research context
CVSS v2.0
7.5
High
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
4.5%
Timeline
From disclosure to observed exploitation
-
Added to KEV Intelligence KEV Feed
High-confidence, third-party attested exploitation
-
CVE published
Vulnerability disclosed publicly
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2006-4326
Free JSON includes basic KEV fields{
"cve_id": "CVE-2006-4326",
"confidence": "High",
"cvss_score": 7.5,
"cvss_estimated": false,
"epss_score": 0.0448,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
Get alerts on high-impact exploitation
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