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ICSA-22-333-05  ·  Published 2025-11-25  ·  View on CISA ICS-CERT ↗

Mitsubishi Electric FA Engineering Software (Update C)

CVSS 9.1 CRITICAL

Risk Summary

Successful exploitation of these vulnerabilities could allow unauthorized users to gain access to the MELSEC iQ-R/F/L series CPU modules and the MELSEC iQ-R series OPC UA server module or to view and execute programs or view project files without permissions.

Remediations

  • Mitsubishi Electric released and recommends users update to the latest version:
  • GX Works3:
  • CVE-2022-25164, CVE-2022-29830, and CVE-2022-29831: Download fixed Ver. 1.096A or later. Then set security version for project to "2".
  • MX OPC UA Module Configurator-R:
  • CVE-2022-25164: Download fixed Ver. 1.09K or later. Update the firmware version of the OPC UA server module to 10 or later.
  • GT Designer3 Version1 (GOT2000):
  • Motion Control Setting:
  • For all other listed vulnerabilities, Mitsubishi Electric released mitigations/workarounds for users to follow:
  • Ensure malicious actors cannot access project files, configuration files, security keys stored on the host machine via untrusted networks or hosts.
  • Install antivirus software on the host machine running the software.
  • Encrypt project files and security keys when sending or receiving over the Internet.
  • Use the "authentication with a certificate" function instead of "username / password authentication" for user authentication for access from OPC UA clients to MELSEC iQ-R series OPC UA server modules (MX OPC UA Module Configurator-R only).
  • For specific update instructions and additional details, see the Mitsubishi Electric advisory.
  • CVE-2022-29826: Download fixed Ver. 1.090U or later
  • CVE-2022-29826 and CVE-2022-29829: Download fixed Ver. 1.045X or later. Apply CVE-2022-29826 or CVE-2022-29829 mitigations for GX Works3 as well.
  • CVE-2022-29825 and CVE-2022-29829: Download fixed Ver. 1.095Z or later. Then set security key's secure mode to Enabled.
  • CVE-2022-29825 and CVE-2022-29829: Download fixed Ver. 1.295H or later. Then set security key's secure mode to Enabled.
  • MT Works2:
  • CVE-2022-29825 and CVE-2022-29829: Download fixed Ver. 1.205P or later and update the software. Then set security key's secure mode to Enabled.Please refer "MT Developer2 Help" – "Security Function" – "Manage Security Key" for details.
  • CVE-2022-29830: Download fixed Ver. 1.070Y or later and update the software. Set security version for project to "2". Refer "Motion Control Setting Function Help" – "12.5. Preventing Illegal Access to/Falsification of Data (Security Version)" for details. Apply the countermeasure for CVE-2022-29830 listed in GX Works3.

Affected Vendors

Mitsubishi Electric

Affected Products (13)

Mitsubishi Electric · GX Works3 >=1.000A|<1.011M
Mitsubishi Electric · GX Works3 >=1.015R|<1.087R
Mitsubishi Electric · GX Works3 1.090U
Mitsubishi Electric · GX Works3 1.095Z
Mitsubishi Electric · GX Works3 >=1.096A
Mitsubishi Electric · MX OPC UA Module Configurator-R <=1.08J
Mitsubishi Electric · GX Works2 vers:all/*
Mitsubishi Electric · GX Developer >=8.40S
Mitsubishi Electric · GT Designer3 Version1 (GOT2000) >=1.122C|<1.290C
Mitsubishi Electric · Motion Control Settings (GX Works3 related software) >=1.000A|<1.033K
Mitsubishi Electric · Motion Control Settings (GX Works3 related software) >=1.035M|<1.042U
Mitsubishi Electric · Motion Control Settings (GX Works3 related software) >=1.045X|<1.065T
Mitsubishi Electric · MT Works2 >=1.100E|<1.200J

Affected Sectors

Critical Manufacturing

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