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Mitsubishi Electric CC-Link IE TSN Communication Protocol

unknownCVE-2026-13584
View CSAF Summary Successful exploitation of this vulnerability could allow an attacker with access to the same network segment to tamper with communication data in the affected product by sending specially crafted packets under specific timing conditions. This could allow the attacker to cause a denial-of-service (DoS) condition in the affected product by interfering with its control function or causing it to operate incorrectly. The following versions of Mitsubishi Electric CC-Link IE TSN Communication Protocol are affected: Mitsubishi Electric MELSEC MX Controller MX-R model MXR300-16 vers:all/* (CVE-2026-13584) Mitsubishi Electric MELSEC MX Controller MX-R model MXR300-32 vers:all/* (CVE-2026-13584) Mitsubishi Electric MELSEC MX Controller MX-R model MXR300-64 vers:all/* (CVE-2026-13584) Mitsubishi Electric MELSEC MX Controller MX-R model MXR500-128 vers:all/* (CVE-2026-13584) Mitsubishi Electric MELSEC MX Controller MX-R model MXR500-256 vers:all/* (CVE-2026-13584) Mitsubishi Electric MELSEC MX Controller MX-F model MXF100-8-N32 vers:all/* (CVE-2026-13584) Mitsubishi Electric MELSEC MX Controller MX-F model MXF100-8-P32 vers:all/* (CVE-2026-13584) Mitsubishi Electric MELSEC MX Controller MX-F model MXF100-16-N32 vers:all/* (CVE-2026-13584) Mitsubishi Electric MELSEC MX Controller MX-F model MXF100-16-P32 vers:all/* (CVE-2026-13584) Mitsubishi Electric Master/local module RJ71GN11-T2 vers:all/* (CVE-2026-13584) Mitsubishi Electric Master/local module RJ71GN11-SX vers:all/* (CVE-2026-13584) Mitsubishi Electric Master/local module RJ71GN11-EIP vers:all/* (CVE-2026-13584) Mitsubishi Electric Master/local module FX5-CCLGN-MS vers:all/* (CVE-2026-13584) Mitsubishi Electric CC-Link IE TSN interface board NZ81GN11-SX vers:all/* (CVE-2026-13584) Mitsubishi Electric CC-Link IE TSN interface board NZ81GN11-T2 vers:all/* (CVE-2026-13584) Mitsubishi Electric Motion module RD78G4 vers:all/* (CVE-2026-13584) Mitsubishi Electric Motion module RD78G8 vers:all/* (CVE-2026-13584)

CSIRTS triage

vendor: Mitsubishi Electricproduct: CC-Link IE TSN Communication ProtocolDenial of serviceaffected: all/*
What
Exploitation could allow an attacker to tamper with communication data and cause a denial-of-service condition.
Who is affected
Mitsubishi Electric MELSEC MX Controllers MX-R models MXR300-16, MXR300-32, MXR300-64, and MXR500-128.
Urgency
The urgency is unknown as the severity is not specified.
Action
Monitor network segments for unusual activity and apply any available updates.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Cybersecurity Advisories (US · national-cert · site)
Severity
unknown
Published
2026-07-30
Exploitation
Not in CISA KEV at last sync

Original advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-07

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-13584coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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