What is CVE-2026-1875?

CVE-2026-1875 is a high-severity vulnerability in Mitsubishielectric Melsec Iq-F Fx5-Eip, classified under Improper Resource Shutdown or Release. CVSS score: 7.5/10. Published 2026-03-03.

How severe is CVE-2026-1875?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Mitsubishielectric Melsec Iq-F Fx5-Eip

CVE-2026-1875

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.

EPSS: 0.004 (35.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mitsubishielectric Melsec_iq-f_fx5-eip
Mitsubishielectric Melsec_iq-f_fx5-eip_firmware
Mitsubishi Electric Corporation Melsec Iq-f Series Fx5-eip Ethernet/ip Module — versions versions 1.000 and prior

Weakness classification (CWE)

CWE-404 — Improper Resource Shutdown or Release

References

Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp (vendor-advisory, Vendor Advisory)
Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp (Third Party Advisory, government-resource)
Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp (Third Party Advisory, government-resource)

Frequently asked questions

What is CVE-2026-1875?: CVE-2026-1875 is a high-severity vulnerability in Mitsubishielectric Melsec Iq-F Fx5-Eip, classified under Improper Resource Shutdown or Release. CVSS score: 7.5/10. Published 2026-03-03.
How severe is CVE-2026-1875?: High severity. CVSS v3 base score is 7.5 out of 10.