Schneider Electric EasyLogic T150 and Saitel DP

Summary

Schneider Electric has released advisories for vulnerabilities in its EasyLogic T150 and Saitel DP devices. The path traversal vulnerability (CVE-2026-6865) allows attackers to gain unauthorized access to sensitive files. Patches are available, and mitigations include strict credential controls and network isolation.

Full text

ICS Advisory Schneider Electric EasyLogic T150 and Saitel DP Release DateJune 18, 2026 Alert CodeICSA-26-169-04 Related topics: Industrial Control System Vulnerabilities , Industrial Control Systems View CSAF Summary Successful exploitation this vulnerability could allow an attacker to gain unauthorized access to sensitive files The following versions of Schneider Electric EasyLogic T150 and Saitel DP are affected: Schneider Electric EasyLogic T150 (formerly Saitel DR) Remote Terminal Unit & Controller Firmware installed on Schneider Electric EasyLogic T150 (formerly Saitel DR) Remote Terminal Unit & Controller (All versions) vers:semver/<=11.06.31 (CVE-2026-6865) Schneider Electric Saitel DP Remote Terminal Unit & Controller Firmware installed on Schneider Electric Saitel DP Remote Terminal Unit & Controller (All versions) vers:semver/<=11.06.36 (CVE-2026-6865) CVSS Vendor Equipment Vulnerabilities v3 7.1 Schneider Electric Schneider Electric EasyLogic T150 and Saitel DP Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Background Critical Infrastructure Sectors: Energy, Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: France Vulnerabilities Expand All + CVE-2026-6865 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ("Path Traversal") vulnerability that could cause unauthorized access to sensitive files when user-supplied input is improperly handled during server-side file path processing. View CVE Details Affected Products Schneider Electric EasyLogic T150 and Saitel DP Vendor:Schneider Electric Product Version:Schneider Electric Schneider Electric EasyLogic T150 (formerly Saitel DR) Remote Terminal Unit & Controller Firmware installed on Schneider Electric EasyLogic T150 (formerly Saitel DR) Remote Terminal Unit & Controller (All versions): vers:semver/<=11.06.31, Schneider Electric Schneider Electric Saitel DP Remote Terminal Unit & Controller Firmware installed on Schneider Electric Saitel DP Remote Terminal Unit & Controller (All versions): vers:semver/<=11.06.36 Product Status:known_affected Remediations MitigationSchneider Electric has identified the following specific workarounds and mitigations users can apply to reduce risk: Schneider Electric EasyLogic T150 (formerly Saitel DR) Remote Terminal Unit & Controller Firmware (vers:semver/<=11.06.31) installed on Schneider Electric EasyLogic T150 (formerly Saitel DR) Remote Terminal Unit & Controller (All versions): Version 11.06.32 of EasyLogic T150 (formerly Saitel DR) Remote Terminal Unit & Controller includes a fix for this vulnerability and is available for download here: MitigationContact Schneider Electric's Customer Care Center to download this firmware. Reboot needed: Yes MitigationSchneider Electric Saitel DP Remote Terminal Unit & Controller Firmware (vers:semver/<=11.06.36) installed on Schneider Electric Saitel DP Remote Terminal Unit & Controller (All versions): Version 11.06.37 of Saitel DP Remote Terminal Unit & Controller includes a fix for this vulnerability and is available for download here: MitigationContact Schneider Electric's Customer Care Center to download this firmware. Reboot needed: Yes MitigationAll affected products: If customers choose not to apply the remediation provided above, they should immediately apply the following mitigations to reduce the risk of exploit: Ensure strict credential controls, even for low privilege users. MitigationEnsure isolation and credentials are in place, as per the product's security recommendations. MitigationThe following product versions have been fixed: Firmware Version 11.06.32 installed on EasyLogic T150 (formerly Saitel DR) Remote Terminal Unit & Controller are fixed versions for CVE-2026-6865 MitigationFirmware Version 11.06.37 installed on Saitel DP Remote Terminal Unit & Controller are fixed versions for CVE-2026-6865 MitigationFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-132-03 Improper Limitation of a Pathname to a Restricted Directory vulnerability on Remote Terminal Unit and Controller Products - SEVD-2026-132-03 PDF Version, Improper Limitation of a Pathname to a Restricted Directory vulnerability on Remote Terminal Unit and Controller Products - SEVD-2026-132-03 CSAF Version.https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-132-03&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-132-03.pdf MitigationFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-132-03 Improper Limitation of a Pathname to a Restricted Directory vulnerability on Remote Terminal Unit and Controller Products - SEVD-2026-132-03 PDF Version, Improper Limitation of a Pathname to a Restricted Directory vulnerability on Remote Terminal Unit and Controller Products - SEVD-2026-132-03 CSAF Version.https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-132-03&p_enDocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-132-03.json 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 7.1 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N 4.0 7.1 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N Acknowledgments Schneider Electric reported this vulnerability to CISA 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 risk of exploitation of this vulnerability. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are only as secure as the 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. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. Revision History Initial Release Date: 2026-05-12 Date Revision Summary 2026-05-12 1 Initial Publication 2026-06-18 2 Initial Republication of Schneider Electric CPCERT SEVD-2026-132-03 Legal Notice and Terms of Use This product is provided subject to this Notification and this Privacy & Use policy. Vendor Schneider Electric Tags Sector: Critical Man

Indicators of Compromise

• cve — CVE-2026-6865

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