CVE-2009-4737

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."

Published: 2010-04-06 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4737 is rated High Risk (66.5/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 3.00%). High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-4737

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-08-28 3.79% 3.00% -0.79%
2 2025-03-30 4.98% 3.79% -1.19%
3 2025-03-29 — 4.98% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4737

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2009-4737

Affected software / configurations for CVE-2009-4737

Vendor Product Version Raw CPE
justsystems ichitaro 13 cpe:2.3:a:justsystems:ichitaro:13:*:*:*:*:*:*:*
justsystems ichitaro 2004 cpe:2.3:a:justsystems:ichitaro:2004:*:*:*:*:*:*:*
justsystems ichitaro 2005 cpe:2.3:a:justsystems:ichitaro:2005:*:*:*:*:*:*:*
justsystems ichitaro 2006 cpe:2.3:a:justsystems:ichitaro:2006:*:*:*:*:*:*:*
justsystems ichitaro 2006 cpe:2.3:a:justsystems:ichitaro:2006:-:government:*:*:*:*:*
justsystems ichitaro 2007 cpe:2.3:a:justsystems:ichitaro:2007:*:*:*:*:*:*:*
justsystems ichitaro 2007 cpe:2.3:a:justsystems:ichitaro:2007:-:government:*:*:*:*:*
justsystems ichitaro 2008 cpe:2.3:a:justsystems:ichitaro:2008:*:*:*:*:*:*:*
justsystems ichitaro 2008 cpe:2.3:a:justsystems:ichitaro:2008:-:government:*:*:*:*:*
justsystems ichitaro 2009 cpe:2.3:a:justsystems:ichitaro:2009:*:*:*:*:*:*:*
justsystems ichitaro 2009 cpe:2.3:a:justsystems:ichitaro:2009:-:government:*:*:*:*:*
justsystems ichitaro 2009 cpe:2.3:a:justsystems:ichitaro:2009:-:trial:*:*:*:*:*
justsystems ichitaro bungei cpe:2.3:a:justsystems:ichitaro:bungei:*:*:*:*:*:*:*
justsystems ichitaro_viewer 19.0.1.0 cpe:2.3:a:justsystems:ichitaro_viewer:19.0.1.0:*:*:*:*:*:*:*
justsystems ichitaro_viewer 20.0.2.0 cpe:2.3:a:justsystems:ichitaro_viewer:20.0.2.0:*:*:*:*:*:*:*

References for CVE-2009-4737

cvelogic Threat Intelligence