PT-2026-22723 · Mitsubishi · Melsec Iq-F Series Fx5-Eip+1

Published 2026-03-03 · Updated 2026-04-30 · CVE-2026-1875

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP (affected versions not specified)

Description An improper resource shutdown or release issue exists in the Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP. A remote attacker can cause a denial-of-service (DoS) condition by continuously sending UDP packets to the product. A system reset is required for recovery.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2026-1875

Affected Products

Fx5-Eip

Melsec Iq-F Series Fx5-Eip

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2026-1875 · Security Note
• https://mitsubishielectric.com/psirt/vulnerability/pdf/2025-021_en.pdf · Vendor Advisory
• https://cisa.gov/news-events/ics-advisories/icsa-26-62-01 · Note
• https://t.me/cveNotify/153893 · Telegram Post
• https://jvn.jp/vu/JVNVU93286687 · Note
• https://twitter.com/CVEnew/status/2028741155177869600 · Twitter Post
• https://t.me/cveNotify/161616 · Telegram Post
• https://t.me/cveNotify/154089 · Telegram Post
• https://twitter.com/cyberbivash/status/2028746250242101255 · Twitter Post
• https://t.me/CVEtracker/46192 · Telegram Post