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Mitsubishi Electric CC-Link IE TSN Communication Protocol

Published:

30 July 2026 at 12:00:00

Alert date:

30 July 2026 at 19:06:06

Source:

cisa.gov

Critical Infrastructure, Network Infrastructure, Mobile & IoT

A high-severity vulnerability (CVE-2026-13584) has been identified in the Mitsubishi Electric CC-Link IE TSN Communication Protocol affecting over 110 product models including PLCs, motion modules, servo drives, inverters, industrial robots, and HMIs. The flaw is classified as CWE-924 (Improper Enforcement of Message Integrity During Transmission in a Communication Channel) with a CVSS v3.1 score of 7.1 (HIGH). An attacker with access to the same network segment can tamper with communication data by sending specially crafted packets under specific timing conditions, potentially causing denial-of-service or incorrect operation of industrial control systems. All versions of all affected products are impacted and no firmware fix is planned. Mitigations include physical access restrictions, network segmentation, firewall deployment, and proper credential management. The vulnerability was reported by researchers at Nozomi Networks and affects critical manufacturing infrastructure deployed worldwide.

Technical details

Mitigation steps:

Affected products:

Mitsubishi Electric CC-Link IE TSN Communication Protocol
Mitsubishi Electric MELSEC MX Controller MX-R series
Mitsubishi Electric MELSEC MX Controller MX-F series
Mitsubishi Electric Master/local module RJ71GN11 series
Mitsubishi Electric Master/local module FX5-CCLGN-MS
Mitsubishi Electric CC-Link IE TSN interface board NZ81GN11 series
Mitsubishi Electric Motion module RD78G series
Mitsubishi Electric Motion module FX5-SSC-G series
Mitsubishi Electric Motion Control Board MR-EM441G
Mitsubishi Electric Block-type remote module NZ2GN series
Mitsubishi Electric Block-type remote module with safety functions NZ2GNSS2 series
Mitsubishi Electric Analog-Digital converter module NZ2GN series
Mitsubishi Electric Digital-Analog converter module NZ2GN series
Mitsubishi Electric CC-Link IE TSN compatible coupler NZ2FT-GN
Mitsubishi Electric FPGA module NZ2GN2S series
Mitsubishi Electric Tension meter LM7 series
Mitsubishi Electric AC Servo MELSERVO-J5 series
Mitsubishi Electric AC Servo MELSERVO-JET series
Mitsubishi Electric Inverter FR-A800/F800/E800 Series
Mitsubishi Electric Industrial Robot CR800-D series controller
Mitsubishi Electric CC-Link IE TSN expansion unit FCU8-EX569
Mitsubishi Electric CC-Link IE TSN-CC-Link IE Field Network bridge module NZ2GN-GFB
Mitsubishi Electric CC-Link IE TSN-AnyWireASLINK bridge module NZ2AW1GNAL
Mitsubishi Electric Energy Measuring Unit EMU4-CM-TSN
Mitsubishi Electric Industrial Computer MELIPC series
Mitsubishi Electric GOT3000 Series
Mitsubishi Electric CC-Link IE TSN Communication Unit GT25-J71GN13-T2
Mitsubishi Electric Motion Control Software SWM-G series
Mitsubishi Electric CC-Link IE TSN Communication Software SW1DND-CCIETCT-M
Mitsubishi Electric Master/Local module Designated communication LSI series
Mitsubishi Electric Remote Station Communication LSI NZ2GACP series
Mitsubishi Electric CC-Link IE TSN Master/Local module LSI SDK SW1DNN-GN610SRC-M
Mitsubishi Electric Remote station software development kit SW1DNC-GNSDK series
Mitsubishi Electric Linear Track System MTR-S series
Mitsubishi Electric Analysis Support Software MELSOFT VIMA SW1DNN-VIMA-M