<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-155-02.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>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/remediation.</strong></p> <p>The following versions of Hitachi Energy ITT600 Explorer are affected:</p> <ul> <li>ITT600 Explorer vers:ITT600_Explorer/<2.1_SP6, vers:ITT600_Explorer/<=2.1_SP6, 2.1_SP6 (CVE-2024-8176, CVE-2025-59375)</li> </ul> <div class="csaf-table"> <table class="tablesaw tablesaw-stack" data-tablesaw-mode="stack" data-tablesaw-minimap> <thead> <tr> <th role="columnheader" data-tablesaw-priority="persist">CVSS</th> <th role="columnheader">Vendor</th> <th role="columnheader">Equipment</th> <th role="columnheader">Vulnerabilities</th> </tr> </thead> <tbody> <tr> <td>v3 7.5</td> <td>Hitachi Energy</td> <td>Hitachi Energy ITT600 Explorer</td> <td>Uncontrolled Recursion, Allocation of Resources Without Limits or Throttling</td> </tr> </tbody> </table> </div> <h3>Background</h3> <ul> <li><strong>Critical Infrastructure Sectors: </strong>Energy</li> <li><strong>Countries/Areas Deployed: </strong>Worldwide</li> <li><strong>Company Headquarters Location: </strong>Switzerland</li> </ul> <hr> <h2>Vulnerabilities</h2> <div class="csaf-accordion"> <p><a class="csaf-accordion-toggle-all" href="#">Expand All +</a></p> <div class="csaf-accordion-item"> <h3><a class="csaf-accordion-toggle" href="#">CVE-2024-8176</a></h3> <div class="csaf-accordion-content"> <p>A stack overflow vulnerability exists in the libexpat library used by the IEC61850 functionality supported by the pro

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