Description
Expected Behavior Violation vulnerability in Mitsubishi Electric MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP all versions allows a remote attacker to cause a denial-of-service (DoS) condition in the affected product by continuously sending a large number of communication packets to the Ethernet port of the product in a short period of time, increasing the processing load of the product, preventing the internal anomaly-detection processing from being performed, and causing the communication function to stop.
Published: 2026-06-19
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 24 Jun 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Mitsubishi Electric Corporation
Mitsubishi Electric Corporation melsec Iq-f Series Fx5-enet/ip Ethernet Module Fx5-enet/ip
Vendors & Products Mitsubishi Electric Corporation
Mitsubishi Electric Corporation melsec Iq-f Series Fx5-enet/ip Ethernet Module Fx5-enet/ip

Mon, 22 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 19 Jun 2026 03:00:00 +0000

Type Values Removed Values Added
Description Expected Behavior Violation vulnerability in Mitsubishi Electric MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP all versions allows a remote attacker to cause a denial-of-service (DoS) condition in the affected product by continuously sending a large number of communication packets to the Ethernet port of the product in a short period of time, increasing the processing load of the product, preventing the internal anomaly-detection processing from being performed, and causing the communication function to stop.
Title Denial-of-service (DoS) vulnerability in MELSEC iQ-F Series FX5-ENET/IP Ethernet module
Weaknesses CWE-440
References
Metrics cvssV4_0

{'score': 8.7, 'vector': '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'}


Subscriptions

Mitsubishi Electric Corporation Melsec Iq-f Series Fx5-enet/ip Ethernet Module Fx5-enet/ip
cve-icon MITRE

Status: PUBLISHED

Assigner: Mitsubishi

Published:

Updated: 2026-06-22T14:46:43.475Z

Reserved: 2026-05-18T05:52:04.899Z

Link: CVE-2026-8806

cve-icon Vulnrichment

Updated: 2026-06-22T14:46:39.228Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-24T20:30:04Z

Weaknesses