CVE-2014-2003

What it is

JustSystems JUST Online Update, as used in Ichitaro through 2014 and other products, does not properly validate signatures of update modules, which allows remote attackers to spoof modules and execute arbitrary code via a crafted signature.

At a glance

Exploitability

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

Exploit odds

3.6% chance of exploitation in the next 30 days (EPSS).

Fix

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

Timeline

1. 2014-06-16 14:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:05 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.6% in the next 30 days (EPSS).
• Severity: 7.6 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2014-06-16 14:55 UTC

Last modified

2026-06-17 00:05 UTC

Exploit probability

3.6% · EPSS, next 30 days

Weakness

CWE-20 · Improper input validation

Record status

Modified

Affected

• Justsystems Ichitaro ≤ 2014
• Justsystems Ichitaro 10
• Justsystems Ichitaro 11
• Justsystems Ichitaro 12
• Justsystems Ichitaro 13
• Justsystems Ichitaro 2004
• Justsystems Ichitaro 2005
• Justsystems Ichitaro 2006

Attack profile CVSS 2.0 · 7.6

Attack vector

Network

Complexity

High

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-2014-2003.md and follow it. Check whether this project is affected by CVE-2014-2003. 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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