CVE-2023-6943

What it is

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Mitsubishi Electric Corporation EZSocket versions 3.0 to 5.92, GT Designer3 Version1(GOT1000) versions 1.325P and prior, GT Designer3 Version1(GOT2000) versions 1.320J and prior, GX Works2 versions 1.11M to 1.626C, GX Works3 versions 1.106L and prior, MELSOFT Navigator versions 1.04E to 2.102G, MT Works2 versions 1.190Y and prior, MX Component versions 4.00A to 5.007H and MX OPC Server DA/UA all versions allows a remote unauthenticated attacker to execute a malicious code by RPC with a path to a malicious library while connected to the products.

At a glance

Exploitability

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

Exploit odds

2.1% chance of exploitation in the next 30 days (EPSS).

Fix

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

Timeline

1. 2024-01-30 09:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 06:51 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.1% in the next 30 days (EPSS).
• Severity: 9.8 CRITICAL (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2024-01-30 09:15 UTC

Last modified

2026-06-17 06:51 UTC

Exploit probability

2.1% · EPSS, next 30 days

Weakness

CWE-470

Record status

Modified

Affected

• Mitsubishielectric Ezsocket
• Mitsubishielectric Fr configurator2
• Mitsubishielectric got1000
• Mitsubishielectric got2000
• Mitsubishielectric Gx works2
• Mitsubishielectric Gx works3
• Mitsubishielectric Mc works64
• Mitsubishielectric Melsoft Navigator

Attack profile CVSS 3.1 · 9.8

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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-2023-6943.md and follow it. Check whether this project is affected by CVE-2023-6943. 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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