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CVE-2023-6943

Mitsubishielectric Ezsocket vulnerability

9.8 CRITICALEPSS 2.13%
  1. Published30 Jan 2024

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Mitsubishielectric Ezsocket≥ 3.0
Mitsubishielectric Fr Configurator2all versions
Mitsubishielectric Got1000all versions
Mitsubishielectric Got2000all versions
Mitsubishielectric Gx Works2≥ 1.11m
Mitsubishielectric Gx Works3all versions
Mitsubishielectric Mc Works64all versions
Mitsubishielectric Melsoft Navigator≥ 1.04e
Mitsubishielectric Mt Works2all versions
Mitsubishielectric Mx Component≥ 4.00a

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2023-6943 being actively exploited?

CVE-2023-6943 is not in the CISA KEV catalog. Its EPSS exploit probability is 2.13%.

How severe is CVE-2023-6943?

CVE-2023-6943 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 2.13% probability of exploitation.

Which products are affected by CVE-2023-6943?

Affected products include Mitsubishielectric Ezsocket, Mitsubishielectric Fr Configurator2, Mitsubishielectric Got1000, Mitsubishielectric Got2000, Mitsubishielectric Gx Works2, and 5 more.

How do I fix CVE-2023-6943?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-6943 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.