CVE-2023-6374

Name: CVE-2023-6374
Creator: NVD / NIST
Published: 2024-01-30T09:15:47.52+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.76%

Last modified Jun 17, 2026

CVE-2023-6374 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Authentication Bypass by Capture-replay vulnerability in Mitsubishi Electric Corporation MELSEC WS Series WS0-GETH00200 all serial numbers allows a remote unauthenticated attacker to bypass authentication by capture-replay attack and illegally login to the affected module. As a result, the remote attacker who has logged in illegally may be able to disclose or tamper with the programs and parameters in the modules.. EPSS estimates a 0.76% chance of exploitation in the next 30 days.

Description

Authentication Bypass by Capture-replay vulnerability in Mitsubishi Electric Corporation MELSEC WS Series WS0-GETH00200 all serial numbers allows a remote unauthenticated attacker to bypass authentication by capture-replay attack and illegally login to the affected module. As a result, the remote attacker who has logged in illegally may be able to disclose or tamper with the programs and parameters in the modules.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.76%

50.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-294

Affected Software

Vendor	Product	Versions
Mitsubishielectric	Melsec Ws0-Geth00200 Firmware	All versions

References

https://jvn.jp/vu/JVNVU99497477Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-24-030-03Third Party Advisory, US Government Resource
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-019_en.pdfVendor Advisory
https://jvn.jp/vu/JVNVU99497477Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-24-030-03Third Party Advisory, US Government Resource
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-019_en.pdfVendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2023-6374?

How severe is CVE-2023-6374?

CVE-2023-6374 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6374?

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-2023-6374?

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

Scan your code now

Source: NVD / NIST