CVE-2023-6943

Name: CVE-2023-6943
Creator: NVD / NIST
Published: 2024-01-30T09:15:47.96+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.84%

Last modified Jun 17, 2026

CVE-2023-6943 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.84% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.84%

76.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-470

Affected Software

Vendor	Product	Versions
Mitsubishielectric	Ezsocket	>= 3.0
Mitsubishielectric	Fr Configurator2	All versions
Mitsubishielectric	Got1000	All versions
Mitsubishielectric	Got2000	All versions
Mitsubishielectric	Gx Works2	>= 1.11m
Mitsubishielectric	Gx Works3	All versions
Mitsubishielectric	Mc Works64	All versions
Mitsubishielectric	Melsoft Navigator	>= 1.04e
Mitsubishielectric	Mt Works2	All versions
Mitsubishielectric	Mx Component	>= 4.00a

References

https://jvn.jp/vu/JVNVU95103362Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-24-030-02Third Party Advisory, US Government Resource
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-020_en.pdfVendor Advisory
https://jvn.jp/vu/JVNVU95103362Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-24-030-02Third Party Advisory, US Government Resource
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-020_en.pdfVendor Advisory

Timeline

Published: Jan 30, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6943?

How severe is CVE-2023-6943?

CVE-2023-6943 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.84% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6943?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6943?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST