Mitsubishi Electric Iconics Digital Solutions and Mitsubishi Electric Products (Update A)

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1. EXECUTIVE SUMMARY

• CVSS v4 6.8
• ATTENTION: Low attack complexity
• Vendor: Mitsubishi Electric Iconics Digital Solutions, Mitsubishi Electric
• Equipment: ICONICS Product Suite and Mitsubishi Electric MC Works64
• Vulnerability: Execution with Unnecessary Privileges

2. RISK EVALUATION

Successful exploitation of this vulnerability could result in information tampering on the target workstation.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Mitsubishi Electric Iconics Digital Solutions reports that the following versions of ICONICS Product Suite and Mitsubishi Electric MC Works64 are affected:

• GENESIS64: All Versions
• GENESIS: Version 11.00
• Mitsubishi Electric MC Works64: All versions

3.2 VULNERABILITY OVERVIEW

3.2.1 EXECUTION WITH UNNECESSARY PRIVILEGES CWE-250

An execution with unnecessary privileges vulnerability in the AlarmWorX64 MMX Pager agent and other services can provide the potential for information tampering. An attacker could make an unauthorized write to arbitrary files by creating a symbolic link from a file used as a write destination by GENESIS64, GENESIS, and MC Works64 to a target file. This could allow the attacker to destroy the file on a PC with GENESIS64, GENESIS, and MC Works64 installed, resulting in a denial-of-service (DoS) condition on the PC.

CVE-2025-0921 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N).

A CVSS v4 score has also been calculated for CVE-2025-0921. A base score of 6.8 has been calculated; the CVSS vector string is (AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Japan

3.4 RESEARCHER

Asher Davila and Malav Vyas from Palo Alto Networks reported this vulnerability to Mitsubishi Electric and CISA.

4. MITIGATIONS

Mitsubishi recommends updating the following to the latest versions:

• GENESIS: Versions 11.01 or later

Mitsubishi Electric recommends that users take the following mitigations to minimize the risk of exploiting this vulnerability:

• Configure the PCs with the affected product installed so that only an administrator can log in.
• In GENESIS 11.00, do not enable the Classic OPC Point Manager service.
• In GENESIS 11.00, only the Classic OPC Point Manager is affected by this vulnerability. This service is disabled by default and should not be enabled to mitigate this vulnerability.
• PCs with the affected product installed should be configured to block remote logins from untrusted networks and hosts, and from non-administrator users.
• Block unauthorized access by using a firewall or virtual private network (VPN), etc., and allow remote login only to administrators when connecting the PCs with the affected product installed to the Internet.
• Restrict physical access to the PC with the affected product installed and the network to which the PC is connected to prevent unauthorized physical access.
• Do not click on web links in emails from untrusted sources. Also, do not open attachments in untrusted emails.
• Mitsubishi Electric Iconics Digital Solutions and Mitsubishi Electric recommends updating the ICONICS Suite with the latest security patches as they become available. ICONICS Suite security patches may be found at the following link: https://partners.iconics.com/Home.aspx. Note that a login is required.
• Refer to the Mitsubishi Electric Iconics Digital Solutions Whitepaper on Security Vulnerabilities, the most recent version of which can be found at: https://iconics.com/About/Security/CERT
• Refer to the Mitsubishi Electric security advisory at: https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-002_en.pdf for information on the availability of the security updates.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely.

5. UPDATE HISTORY

• May 20, 2025: Initial Publication
• August 7, 2025: Update A - Removed AlarmWorX64 wording from the Affected Products section, added reference to other services in the vulnerability overview, removed the multi-agent service disablement mitigation action, and updated CVE description and CVSS score.

• ICONICS, Mitsubishi Electric
• Mitsubishi Electric