CVE-2026-8805

Published Jun 19, 2026

Last updated 2 months ago

CVSS high 8.7
ICS

Overview

Description
Integer Overflow or Wraparound vulnerability in the EtherNet/IP function of Mitsubishi Electric 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 in the affected product by rapidly establishing a large number of TCP connections to it, resulting in an inconsistency in the product's internal connection management process and triggering improper memory access.
Source
Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
NVD status
Deferred

Risk scores

CVSS 4.0

Type
Secondary
Base score
8.7
Impact score
-
Exploitability score
-
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity
HIGH

Weaknesses

Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
CWE-190

Social media

Hype score
Not currently trending

  1. CVE-2026-8805 Integer Overflow Vulnerability in Mitsubishi Electric MELSEC iQ-F Series FX5-EIP Module https://t.co/kUM4CIaeo1

    @VulmonFeeds

    19 Jun 2026

    20 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

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References

Sources include official advisories and independent security research.