CVE-2026-1875: Denial-of-Service (DoS) vulnerability in Ethernet function of MELSEC iQ-F Series EtherNet/IP module

Published Mar 3, 2026
·
Updated

Improper Resource Shutdown or Release vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP versions 1.000 and prior allows a remote attacker to cause a denial-of-service (DoS) condition on the products by continuously sending UDP packets to the products. A system reset of the product is required for recovery.

Affected Software

3 affected components
Mitsubishi Electric MELSEC iQ-F Series FX5-EIP EtherNet/IP Module<=1.000
All of the following
Mitsubishielectric Melsec Iq-f Fx5-eip Firmware<=1.000
Mitsubishielectric Melsec Iq-f Fx5-eip

Event History

Mar 3, 2026
CVE Published
via MITRE·06:54 AM
Data Sourced
via MITRE·06:54 AM
DescriptionWeakness
Data Sourced
via NVD·07:16 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-1875?

CVE-2026-1875 has a severity rating that indicates a significant risk of Denial-of-Service (DoS) due to improper resource shutdown or release.

2

How do I fix CVE-2026-1875?

To address CVE-2026-1875, you should apply the latest software updates or patches provided by Mitsubishi Electric for the MELSEC iQ-F Series EtherNet/IP module.

3

What types of attacks are possible with CVE-2026-1875?

CVE-2026-1875 can be exploited by remote attackers to cause a Denial-of-Service (DoS) condition, potentially disrupting network operations.

4

What versions are affected by CVE-2026-1875?

CVE-2026-1875 affects all versions of the Mitsubishi Electric MELSEC iQ-F Series FX5-EIP EtherNet/IP module.

5

Who should be concerned about CVE-2026-1875?

System administrators and users of the Mitsubishi Electric MELSEC iQ-F Series should be concerned about CVE-2026-1875 due to the potential for service interruptions.

Contact

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