CVE-2023-6942

HIGH
Published Jan 30, 2024 Modified Sep 19, 2025 CWE-306

Description

Missing Authentication for Critical Function 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 bypass authentication by sending specially crafted packets and connect to the products illegally.

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CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness Type (CWE)

CWE-306 Missing Authentication

Affected Products

Vendor Product
mitsubishielectric ezsocket
mitsubishielectric fr_configurator2
mitsubishielectric got1000
mitsubishielectric got2000
mitsubishielectric gx_works2
mitsubishielectric gx_works3
mitsubishielectric mc_works64
mitsubishielectric melsoft_navigator
mitsubishielectric mt_works2
mitsubishielectric mx_component

References

Frequently Asked Questions

What is CVE-2023-6942? +
Missing Authentication for Critical Function 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 bypass authentication by sending specially crafted packets and connect to the products illegally. It has a CVSS v3.1 base score of 7.5 (HIGH).
How severe is CVE-2023-6942? +
CVE-2023-6942 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2023-6942? +
CVE-2023-6942 affects products from mitsubishielectric, specifically: ezsocket, fr_configurator2, got1000, got2000, gx_works2, gx_works3, mc_works64, melsoft_navigator, mt_works2, mx_component. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2023-6942? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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