Hitachi Energy PCM600

View CSAF Summary Hitachi Energy is aware of a vulnerability that affects the Hitachi Energy PCM600 product versions listed in this document. An attacker successfully exploiting this vulnerability can impact integrity of the product. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation. The following versions of Hitachi Energy PCM600 are affected: PCM600 Legacy vers:PCM600_Legacy/<=2.11 (CVE-2018-1002208) PCM600 3.0, 3.0_HF1, 3.0_HF2, 3.0_HF3, 3.1, 3.1_SP1, 3.1_SP2, 3.1_SP3 (CVE-2018-1002208, CVE-2018-1002208, CVE-2018-1002208, CVE-2018-1002208, CVE-2018-1002208, CVE-2018-1002208, CVE-2018-1002208, CVE-2018-1002208) CVSS Vendor Equipment Vulnerabilities

v3 4.4 Hitachi Energy Hitachi Energy PCM600 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Background Critical Infrastructure Sectors: Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: Switzerland Vulnerabilities Expand All + CVE-2018-1002208 SharpZipLib before 1.0 RC1 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'. View CVE Details Affected Products Hitachi Energy PCM600 Vendor: Hitachi Energy Product Version: PCM600 Legacy Version 2.11 and earlier, PCM600 3.0, PCM600 3.0 HF1, PCM600 3.0 HF2, PCM600 3.0 HF3, PCM600 3.1, PCM600 3.1 SP1, PCM600 3.1 SP2, PCM600 3.1 SP3 Product Status: known_affected Remediations None available Prior to acquisition, PCM600 product versions 2.11 and earlier were distributed under ABB’s organization. Some Hitachi Energy users may still be operating these legacy versions. While ABB continues to maintain the PCM600 2.x product line, Hitachi Energy now exclusively maintains and distributes the PCM600 3.x product line. ABB has recently published a cybersecurity advisory [2NGA002813] (https://library.e.abb.com/public/ec33308ad2c34f92bab09df09c66954d/2NGA002813_PCM600_Sharpziplib_Vulnerability.pdf) with their recommended actions for this same vulnerability. However, because Hitachi Energy does not maintain or validate the PCM600 2.x releases, they cannot assess or guarantee the compatibility of ABB’s recommended updates with other Hitachi Energy IEDs (Relion 670 series, 650 series, SAM600, PWC600). PCM600 versions 3.0, and later are the Hitachi Energy maintained and validated versions, Hitachi Energy strongly recommends users to migrate to these versions. Additionally, please follow Hitachi Energy's [Industrial Control Systems Best Practices,](https://publisher.hitachienergy.com/preview?DocumentID=8DBD000235&LanguageCode=en&DocumentPartId=&Action=Launch) until the planned remediation is released. Contact your support representative for more detailed guidance tailored to your deployment. Mitigation Ensure that Chapter 4 of Cyber Security Deployment Guideline - 1MRK505410 has been followed during the deployment. Ensure that no default credentials are in use. In case of exceptions, please ensure they have been mitigated with adequate countermeasures. Vendor fix Update to PCM600 3.1 SP4 (Update Planned) Relevant CWE: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Metrics CVSS Version Base Score Base Severity Vector String

3.1 4.4 MEDIUM CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N

Acknowledgments Hitachi Energy reported this vulnerability to CISA. Notice 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. Support For additional information and support please contact your product provider or Hitachi Energy service organization. For contact information, see https://www.hitachienergy.com/contact-us/ for Hitachi Energy contact-centers. General Mitigation Factors It is highly recommended to deploy the product following the “PCM600 3.1 Cyber Security Deployment Guideline” document. Customers should maintain their systems with products running on supported versions and follow maintenance releases. 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. SSVC SSVCv2/E:N/A:N/2026-04-24T14:16:01Z/ Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the exploitation risk of these vulnerabilities. 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 8DBD000239 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 contact Hitachi Energy directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-04-28 Date Revision Summary

2026-04-28 1 Initial public release

2026-05-05 2 Initial CISA Republication of Hitachi Energy 8DBD000239 advisory

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Source: CISA Alerts