Hitachi Energy MicroSCADA X SYS600 Product

Hitachi Energy is aware of multiple vulnerabilities that affect MicroSCADA X SYS600 product versions listed in this document. These vulnerabilities can be exploited to carry out various attacks on the product. Please refer to the Recommended Immediate Actions for information the mitigation/remediation.

The following versions of Hitachi Energy MicroSCADA X SYS600 Product are affected:

MicroSCADA X SYS600 vers:MicroSCADA_X_SYS600/<=10.7, 10.8 (CVE-2026-9852, CVE-2026-9853, CVE-2026-9854, CVE-2026-9853)

Critical Infrastructure Sectors: Energy

Countries/Areas Deployed: Worldwide

Company Headquarters Location: Switzerland

Product Status: known_affected

Vendor fix Update to version 10.8

Mitigation Follow general mitigation factors/workarounds

Relevant CWE: CWE-1236 Improper Neutralization of Formula Elements in a CSV File

Product Status: known_affected

Vendor fix Update to version 10.8 and Follow mitigation strategy. Refer to MicroSCADA X SYS00 10.8 Installation and Administration Manual, Section 2.1.7.5 (Mitigation strategy is available for versions 10.3 onwards). Also refer to MicroSCADA X 10.8 Cybersecurity Deployment Guide

Mitigation Follow mitigation strategy. Refer to MicroSCADA X SYS00 10.8 Installation and Administration Manual, Section 2.1.7.5 (Mitigation strategy is available for versions 10.3 onwards). Also refer to MicroSCADA X 10.8 Cybersecurity Deployment Guide

Mitigation Follow general mitigation factors/workarounds

Product Status: known_affected

Vendor fix Update to version 10.8 and Follow mitigation strategy. Refer to MicroSCADA X SYS00 10.8 Installation and Administration Manual, Section 2.1.7.5 (Mitigation strategy is available for versions 10.3 onwards). Also refer to MicroSCADA X 10.8 Cybersecurity Deployment Guide

Mitigation Follow mitigation strategy. Refer to MicroSCADA X SYS00 10.8 Installation and Administration Manual, Section 2.1.7.5 (Mitigation strategy is available for versions 10.3 onwards). Also refer to MicroSCADA X 10.8 Cybersecurity Deployment Guide

Mitigation Follow general mitigation factors/workarounds

Product Status: known_affected

Mitigation Follow mitigation strategy. Refer to MicroSCADA X SYS00 10.8 Installation and Administration Manual, Section 2.1.7.5 (Mitigation strategy is available for versions 10.3 onwards). Also refer to MicroSCADA X 10.8 Cybersecurity Deployment Guide

Mitigation Follow general mitigation factors/workarounds

Relevant CWE: CWE-303 Incorrect Implementation of Authentication Algorithm

Product Status: known_affected

Vendor fix Update to version 10.8

Mitigation Follow general mitigation factors/workarounds

Product Status: known_affected

Vendor fix Update to version 10.8

Mitigation Follow general mitigation factors/workarounds

Product Status: known_affected

Product Status: known_affected

Vendor fix Update to version 10.8

Mitigation Follow general mitigation factors/workarounds

Relevant CWE: CWE-303 Incorrect Implementation of Authentication Algorithm

Zachary Andrew Wagner, Steven Nicolais, and Timotius Oetnung of the Sandia National Laboratories (CyTRICS program) reported these vulnerabilities to CISA.

The information in this document is subject to change without notice and should not be construed as a commitment by Hitachi Energy. Hitachi Energy provides no warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, for the information contained in this document, and assumes no responsibility for any errors that may appear in this document. In no event shall Hitachi Energy or any of its suppliers be liable for direct, indirect, special, incidental or consequential damages of any nature or kind arising from the use of this document, or from the use of any hardware or software described in this document, even if Hitachi Energy or its suppliers have been advised of the possibility of such damages. This document and parts hereof must not be reproduced or copied without written permission from Hitachi Energy and the contents hereof must not be imparted to a third party nor used for any unauthorized purpose. All rights to registrations and trademarks reside with their respective owners.

For additional information and support please your product provider or Hitachi Energy service organization. For information, see for Hitachi Energy -centers.

General Mitigation Factors

Recommended security practices and firewall configurations can help protect a process control network from attacks that originate from outside the network. Such practices include that process control systems are physically protected from direct access by unauthorized personnel, have no direct connections to the Internet, and are separated from other networks by means of a firewall system that has a minimal number of ports exposed, and others that have to be evaluated case by case. Process control systems should not be used for Internet surfing, instant messaging, or receiving e-mails. Portable computers and removable storage media should be carefully scanned for viruses before they are connected to a control system. Proper password policies and processes should be followed. Additional information on Industrial Control Systems Cybersecurity Best Practices can be found in the Hitachi Energy’s “Industrial Control Systems Cybersecurity Best Practices” Cybersecurity Notification. [1]

SSVCv2/E:N/A:N/2026-09-28T14:40:32Z/

Recommended Practices

CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.

Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.

Locate control system networks and remote devices behind firewalls and isolate them from business networks.

When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.

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. 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 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.

Advisory Conversion Disclaimer

This ICSA is a verbatim republication of Hitachi Energy PSIRT 8DBD000249 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please Hitachi Energy PSIRT directly for any questions regarding this advisory.

Initial Release Date: 2026-09-01

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