[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3_dKoIN1l5qzUO8g7nkABGr5Q6rrv4P9i3SnrEHf2f4":3},{"article":4,"iocs":39},{"id":5,"title":6,"slug":7,"summary":8,"ai_summary":9,"brief":10,"full_text":11,"url":12,"image_url":13,"published_at":14,"ingested_at":15,"relevance_score":16,"entities":17,"category_id":29,"category":30,"article_tags":33},"4ac6de87-77af-4cfc-b8c8-7600bdd6b112","Hitachi Energy ITT600 Explorer","hitachi-energy-itt600-explorer-e8284b","View CSAF Summary Hitachi Energy is aware of vulnerabilities that affect ITT600 Explorer product versions listed in this document. These vulnerabilities can be exploited to carry out Denial of Service (DoS) attack on the product. The vulnerabilities only affect Hitachi Energy Integrated Testing Tool ITT600 SA Explorer without affecting IEC 61850 system endpoints. Please refer to the Recommended Immediate Actions for information about the mitigation\u002Fremediation. The following versions of Hitachi Energy ITT600 Explorer are affected: ITT600 Explorer vers:ITT600_Explorer\u002F\u003C2.1_SP6, vers:ITT600_Explorer\u002F\u003C=2.1_SP6, 2.1_SP6 (CVE-2024-8176, CVE-2025-59375) CVSS Vendor Equipment Vulnerabilities v3 7.5 Hitachi Energy Hitachi Energy ITT600 Explorer Uncontrolled Recursion, Allocation of Resources Without Limits or Throttling Background Critical Infrastructure Sectors: Energy Countries\u002FAreas Deployed: Worldwide Company Headquarters Location: Switzerland Vulnerabilities Expand All + CVE-2024-8176 A stack overflow vulnerability exists in the libexpat library used by the IEC61850 functionality supported by the product. A malicious user with local access could use a crafted IEC61850 message to exploit the vulnerability in the libexpat library. This issue could lead to denial of service (DoS) or, in some cases, exploitable memory corruption, depending on the environment and library usage. Product is only affected if IEC61850 server simulation is used. View CVE Details Affected Products Hitachi Energy ITT600 Explorer Vendor: Hitachi Energy Product Version: ITT600 Explorer before version 2.1 SP6 Product Status: fixed, known_affected Remediations Vendor fix Update to version 2.1 SP6 HF1 Vendor fix Upgrade to version 2.2 when available Relevant CWE: CWE-674 Uncontrolled Recursion Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:H CVE-2025-59375 A vulnerability exists in libexpat used by the product allowing attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing. Product is only affected if IEC61850 server simulation is used. View CVE Details Affected Products Hitachi Energy ITT600 Explorer Vendor: Hitachi Energy Product Version: ITT600 Explorer version 2.1 SP6 and prior Product Status: known_affected Remediations Vendor fix Update to version 2.1 SP6 HF1 Vendor fix Upgrade to version 2.2 when available Relevant CWE: CWE-770 Allocation of Resources Without Limits or Throttling Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:H Acknowledgments Hitachi Energy Internal Team 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:\u002F\u002Fwww.hitachienergy.com\u002Fcontact-us\u002F for Hitachi Energy contact-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 following Hitachi Energy Cybersecurity Notification. Cybersecurity Advisory - Industrial Control Systems Cybersecurity Best Practices SSVC SSVCv2\u002FE:N\u002FA:Y\u002F2026-05-26T08:58:04Z\u002F Legal Notice and Terms of Use This product is provided subject to this Notification (https:\u002F\u002Fwww.cisa.gov\u002Fnotification) and this Privacy & Use policy (https:\u002F\u002Fwww.cisa.gov\u002Fprivacy-policy). 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\u002For 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 8DBD000241 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 PSIRT directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-05-26 Date Revision Summary 2026-05-26 1 Initial public release 2026-06-04 2 Initial CISA Republication of Hitachi Energy PSIRT 8DBD000241 advisory Legal Notice and Terms of Use","Hitachi Energy disclosed two high-severity vulnerabilities (CVE-2024-8176, CVE-2025-59375) in the ITT600 Explorer product affecting versions prior to 2.1 SP6. Both flaws exist in the libexpat library used for IEC 61850 functionality and can be exploited to cause denial of service via stack overflow or resource exhaustion. The vulnerabilities require local access or malicious IEC 61850 messages and only impact systems using IEC 61850 server simulation.","Hitachi Energy ITT600 Explorer DoS vulnerabilities in libexpat affect IEC 61850 simulation.","ICS Advisory Hitachi Energy ITT600 Explorer Release DateJune 04, 2026 Alert CodeICSA-26-155-02 Related topics: Industrial Control System Vulnerabilities , Industrial Control Systems View CSAF Summary Hitachi Energy is aware of vulnerabilities that affect ITT600 Explorer product versions listed in this document. These vulnerabilities can be exploited to carry out Denial of Service (DoS) attack on the product. The vulnerabilities only affect Hitachi Energy Integrated Testing Tool ITT600 SA Explorer without affecting IEC 61850 system endpoints. Please refer to the Recommended Immediate Actions for information about the mitigation\u002Fremediation. The following versions of Hitachi Energy ITT600 Explorer are affected: ITT600 Explorer vers:ITT600_Explorer\u002F\u003C2.1_SP6, vers:ITT600_Explorer\u002F\u003C=2.1_SP6, 2.1_SP6 (CVE-2024-8176, CVE-2025-59375) CVSS Vendor Equipment Vulnerabilities v3 7.5 Hitachi Energy Hitachi Energy ITT600 Explorer Uncontrolled Recursion, Allocation of Resources Without Limits or Throttling Background Critical Infrastructure Sectors: Energy Countries\u002FAreas Deployed: Worldwide Company Headquarters Location: Switzerland Vulnerabilities Expand All + CVE-2024-8176 A stack overflow vulnerability exists in the libexpat library used by the IEC61850 functionality supported by the product. A malicious user with local access could use a crafted IEC61850 message to exploit the vulnerability in the libexpat library. This issue could lead to denial of service (DoS) or, in some cases, exploitable memory corruption, depending on the environment and library usage. Product is only affected if IEC61850 server simulation is used. View CVE Details Affected Products Hitachi Energy ITT600 Explorer Vendor:Hitachi Energy Product Version:ITT600 Explorer before version 2.1 SP6 Product Status:fixed, known_affected Remediations Vendor fixUpdate to version 2.1 SP6 HF1 Vendor fixUpgrade to version 2.2 when available Relevant CWE: CWE-674 Uncontrolled Recursion Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:H CVE-2025-59375 A vulnerability exists in libexpat used by the product allowing attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing. Product is only affected if IEC61850 server simulation is used. View CVE Details Affected Products Hitachi Energy ITT600 Explorer Vendor:Hitachi Energy Product Version:ITT600 Explorer version 2.1 SP6 and prior Product Status:known_affected Remediations Vendor fixUpdate to version 2.1 SP6 HF1 Vendor fixUpgrade to version 2.2 when available Relevant CWE: CWE-770 Allocation of Resources Without Limits or Throttling Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:H Acknowledgments Hitachi Energy Internal Team 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:\u002F\u002Fwww.hitachienergy.com\u002Fcontact-us\u002F for Hitachi Energy contact-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 following Hitachi Energy Cybersecurity Notification. Cybersecurity Advisory - Industrial Control Systems Cybersecurity Best Practices SSVC SSVCv2\u002FE:N\u002FA:Y\u002F2026-05-26T08:58:04Z\u002F Legal Notice and Terms of Use This product is provided subject to this Notification (https:\u002F\u002Fwww.cisa.gov\u002Fnotification) and this Privacy & Use policy (https:\u002F\u002Fwww.cisa.gov\u002Fprivacy-policy). 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\u002For 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 8DBD000241 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 PSIRT directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-05-26 Date Revision Summary 2026-05-26 1 Initial public release 2026-06-04 2 Initial CISA Republication of Hitachi Energy PSIRT 8DBD000241 advisory Legal Notice and Terms of Use This product is provided subject to this Notification and this Privacy & Use policy","https:\u002F\u002Fwww.cisa.gov\u002Fnews-events\u002Fics-advisories\u002Ficsa-26-155-02",null,"2026-06-04T12:00:00+00:00","2026-06-04T16:00:26.235992+00:00",8,[18,21,24,27],{"name":19,"type":20},"Hitachi Energy","vendor",{"name":22,"type":23},"ITT600 Explorer","product",{"name":25,"type":26},"libexpat","technology",{"name":28,"type":26},"IEC 61850","80544778-fabb-4dcd-aa35-17492e5dcf4f",{"id":29,"icon":13,"name":31,"slug":32},"Vulnerabilities","vulnerabilities",[34],{"category":35},{"id":36,"icon":13,"name":37,"slug":38},"d6f63bb8-0801-486a-be7f-171400700454","IoT\u002FOT","iot-ot",[40,44],{"type":41,"value":42,"context":43},"cve","CVE-2024-8176","Stack overflow in libexpat library used by ITT600 Explorer IEC 61850 functionality; CVSS 7.5",{"type":41,"value":45,"context":46},"CVE-2025-59375","Resource exhaustion in libexpat allowing large dynamic memory allocations; CVSS 7.5"]