CVE-2009-4737

What it is

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."

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

3.5% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2010-04-06 22:30 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:14 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.5% in the next 30 days (EPSS).
• Severity: 9.3 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2010-04-06 22:30 UTC

Last modified

2026-06-16 23:14 UTC

Exploit probability

3.5% · EPSS, next 30 days

Weakness

CWE-119 · Buffer errors

Record status

Modified

Affected

• Justsystems Ichitaro 13
• Justsystems Ichitaro 2004
• Justsystems Ichitaro 2005
• Justsystems Ichitaro 2006
• Justsystems Ichitaro 2007
• Justsystems Ichitaro 2008
• Justsystems Ichitaro 2009
• Justsystems Ichitaro Bungei

Attack profile CVSS 2.0 · 9.3

Attack vector

Network

Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2009-4737.md and follow it. Check whether this project is affected by CVE-2009-4737. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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