ST Engineering iDirect iQ-Series Terminals
Summary
<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-183-01.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Successful exploitation of these vulnerabilities could allow an attacker to gain unauthorized access to device information or cause a denial-of-service condition.</strong></p> <p>The following versions of ST Engineering iDirect iQ-Series Terminals are affected:</p> <ul> <li>Evolution iQ‑Series terminals <=4.5.2.1 (CVE-2026-38059, CVE-2026-38057)</li> <li>3315‑Series terminals <=4.5.2.1 (CVE-2026-38059, CVE-2026-38057)</li> <li>9‑Series terminals <=4.5.2.1 (CVE-2026-38059, CVE-2026-38057)</li> </ul> <div class="csaf-table"> <table class="tablesaw tablesaw-stack"> <thead> <tr> <th>CVSS</th> <th>Vendor</th> <th>Equipment</th> <th>Vulnerabilities</th> </tr> </thead> <tbody> <tr> <td>v3 8.1</td> <td>ST Engineering iDirect</td> <td>ST Engineering iDirect iQ-Series Terminals</td> <td>Missing Authentication for Critical Function, Cross-Site Request Forgery (CSRF)</td> </tr> </tbody> </table> </div> <h3>Background</h3> <ul> <li><strong>Critical Infrastructure Sectors: </strong>Communications, Defense Industrial Base, Energy, Government Services and Facilities, Transportation Systems</li> <li><strong>Countries/Areas Deployed: </strong>Worldwide</li> <li><strong>Company Headquarters Location: </strong>United States</li> </ul> <hr /> <h2>Vulnerabilities</h2> <div class="csaf-accordion"> <p><a class="csaf-accordion-toggle-all" href="https://www.cisa.gov/">Expand All +</a></p> <div class="csaf-accordion-item"> <h3><a class="csaf-accordion-toggle" href="https://www.cisa.gov/">CVE-2026-38059</a></h3> <div class="csaf-accordion-content"> <p>The iDirect iQ200 exposes the /api/identity and /api/ REST API endpoints without authentication. An unauthenticated attacker with network access can retrieve sensitive device information including the serial number, Device ID (DID), Terminal Private Key identifier (TPK), MAC address, and exact firmware version. The DID and TPK are used for satellite network authentication in the iDirect platform, potentially enabling terminal impersonation and network reconnaissance.</p> <p><a href="https://www.cve.org/CVERecord?id=CVE-2026-38059">View CVE Details</a></p> <hr /> <h4>Affected Products</h4> <h5>ST Engineering iDirect iQ-Series Terminals</h5> <div class="ics-vendor-version-status"> <div class="ics-vendor"><strong>Vendor:</strong><br />ST Engineering iDirect</div> <div class="ics-version"><strong>Product Version:</strong><br />ST Engineering iDirect Evolution iQ‑Series terminals: <=4.5.2.1, ST Engineering iDirect 3315‑Series terminals: <=4.5.2.1, ST Engineering iDirect 9‑Series terminals: <=4.5.2.1</div> <div class="ics-status"><strong>Product Status:</strong><br />known_affected</div> </div> <div class="ics-remediations"> <h6>Remediations</h6> <p><strong>Mitigation</strong><br />ST Engineering iDirect has fixed the vulnerabilities and recommend users update the software to version 4.5.2.2 or newer.</p> <p><strong>Mitigation</strong><br />Registered users are able to download patches from the iDirect Support Portal https://support.idirect.net/s/login.<br /><a href="https://support.idirect.net/s/login">https://support.idirect.net/s/login</a></p> <p><strong>Mitigation</strong><br />Restrict management interfaces to trusted networks (e.g., VPN, ACLs).</p> <p><strong>Mitigation</strong><br />Avoid exposing administrative APIs to the public internet.</p> <p><strong>Mitigation</strong><br />Enforce strong authentication practices.</p> <p><strong>Mitigation</strong><br />Monitor for anomalous API activity and unexpected device reboots.</p> </div> <p><strong>Relevant CWE:</strong> <a href="https://cwe.mitre.org/data/definitions/306.html">CWE-306 Missing Authentication for Critical Function</a></p> <hr /> <h4>Metrics</h4> <div class="csaf-table csaf-metrics-table"> <table class="tablesaw tablesaw-stack"> <thead> <tr> <th>CVSS Version</th> <th>Base Score</th> <th>Base Severity</th> <th>Vector String</th> </tr> </thead> <tbody> <tr> <td>3.1</td> <td>7.5</td> <td>HIGH</td> <td><a href="https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N</a></td> </tr> <tr> <td>4.0</td> <td>8.7</td> <td>HIGH</td> <td><a href="https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N</a></td> </tr> </tbody> </table> </div> </div> </div> <div class="csaf-accordion-item"> <h3><a class="csaf-accordion-toggle" href="https://www.cisa.gov/">CVE-2026-38057</a></h3> <div class="csaf-accordion-content"> <p>The iDirect iQ200 does not validate CSRF tokens on state-changing API endpoints after authentication. The /api/reboot endpoint accepts POST requests authenticated solely by a session cookie that lacks the SameSite attribute. A remote attacker can host a malicious web page that, when visited by an authenticated administrator, automatically submits a cross-site POST request causing an immediate device reboot and satellite link loss. Repeated attacks can sustain a denial-of-service condition.</p> <p><a href="https://www.cve.org/CVERecord?id=CVE-2026-38057">View CVE Details</a></p> <hr /> <h4>Affected Products</h4> <h5>ST Engineering iDirect iQ-Series Terminals</h5> <div class="ics-vendor-version-status"> <div class="ics-vendor"><strong>Vendor:</strong><br />ST Engineering iDirect</div> <div class="ics-version"><strong>Product Version:</strong><br />ST Engineering iDirect Evolution iQ‑Series terminals: <=4.5.2.1, ST Engineering iDirect 3315‑Series terminals: <=4.5.2.1, ST Engineering iDirect 9‑Series terminals: <=4.5.2.1</div> <div class="ics-status"><strong>Product Status:</strong><br />known_affected</div> </div> <div class="ics-remediations"> <h6>Remediations</h6> <p><strong>Mitigation</strong><br />ST Engineering iDirect has fixed the vulnerabilities and recommend users update the software to version 4.5.2.2 or newer.</p> <p><strong>Mitigation</strong><br />Registered users are able to download patches from the iDirect Support Portal https://support.idirect.net/s/login.<br /><a href="https://support.idirect.net/s/login">https://support.idirect.net/s/login</a></p> <p><strong>Mitigation</strong><br />Restrict management interfaces to trusted networks (e.g., VPN, ACLs).</p> <p><strong>Mitigation</strong><br />Avoid exposing administrative APIs to the public internet.</p> <p><strong>Mitigation</strong><br />Enforce strong authentication practices.</p> <p><strong>Mitigation</strong><br />Monitor for anomalous API activity and unexpected device reboots.</p> </div> <p><strong>Relevant CWE:</strong> <a href="https://cwe.mitre.org/data/definitions/352.html">CWE-352 Cross-Site Request Forgery (CSRF)</a></p> <hr /> <h4>Metrics</h4> <div class="csaf-table csaf-metrics-table"> <table class="tablesaw tablesaw-stack"> <thead> <tr> <th>CVSS Version</th> <th>Base Score</th> <th>Base Severity</th> <th>Vector String</th> </tr> </thead> <tbody> <tr> <td>3.1</td> <td>8.1</td> <td>HIGH</td> <td><a href="https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H</a></td> </tr> <tr> <td>4.0</td> <td>7</td> <td>HIGH</td> <td><a href="https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N</a></td> </tr> </tbody> </table> </div> </div> </div> </div> <hr /> <h2>Acknowledgments</h2> <ul> <li>Ahmed Alqahtani of Aramco reported these vulnerabilities to CISA</li> </ul> <hr /> <h2>Legal Notice and Terms of Use</h2> <p>This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).</p> <hr /> <h2>Recommended Practices</h2> <p>CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities.</p> <p>Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.</p> <p>Locate control system networks and remote devices behind firewalls and isolating them from business networks.</p> <p>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 current version available. Also recognize VPN is only as secure as the connected devices.</p> <p>CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.</p> <p>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.</p> <p>CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.</p> <p>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.</p> <p>Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.</p> <p>CISA also recommends users take the following measures to protect themselves from social engineering attacks:</p> <p>Do not click web links or open attachments in unsolicited email messages.</p> <p>Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.</p> <p>Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.</p> <p>No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.</p> <hr /> <h2>Revision History</h2> <ul> <li><strong>Initial Release Date: </strong>2026-07-02</li> </ul> <table class="tablesaw tablesaw-stack"> <thead> <tr> <th>Date</th> <th>Revision</th> <th>Summary</th> </tr> </thead> <tbody> <tr> <td>2026-07-02</td> <td>1</td> <td>Initial Publication</td> </tr> </tbody> </table> <hr /> <h2>Legal Notice and Terms of Use</h2>