Schneider Electric Security Notification
Trio™ Licensed and License-free Data Radios
12 December 2023 (9 April 2024)

Overview
Schneider Electric is aware of multiple vulnerabilities in its Trio Licensed and License-Free Data
Radio products.
The Trio Licensed Radio products are designed to provide complete, versatile, and highavailability system solutions for long range wireless data communications in SCADA and remotetelemetry applications. The Trio License-Free Radio products are a range of frequency-hopping
Ethernet and Serial Data Radios operating in the license-free 900Mhz and 2.4 Ghz band anddesigned with versatility and flexibility in mind.
Failure to apply the remediations and mitigations provided below may risk disclosure ofinformation, or potential installation of malicious code.
April 2024 Update: A remediation is now available for Trio J-Series Ethernet Data Radio on
CVE-2023-5629.

Affected Products and Versions
ProductCVE-2023-5629

CVE-2023-5630

Trio E-Series Ethernet Data RadioAll versions in themodels: ER45e,EB45e, EH45e

All Versions

Trio J-Series Ethernet Data Radio

Versions prior to
3.8.3

All Versions

Trio Q-Series Ethernet Data Radio

Versions prior to2.7.0All Versions

Vulnerability Details
CVE ID: CVE-2023-5629
CVSS v3.1 Base Score 8.2 | High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
CWE-601: URL Redirection to Untrusted Site (‘Open Redirect’) vulnerability exists that could
cause disclosure of information through phishing attempts over HTTP.

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Schneider Electric Security Notification
CVE ID: CVE-2023-5630
CVSS v3.1 Base Score 6.5 | Medium | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CWE-494: Download of Code Without Integrity Check vulnerability exists that could allow aprivileged user to install an untrusted firmware.
Note regarding vulnerability details: The severity of vulnerabilities was calculated using theCVSS Base metrics in version 3.1 (CVSS v3.1) without incorporating the Temporal andEnvironmental metrics. Schneider Electric recommends that customers score the CVSS
Environmental metrics, which are specific to end-user organizations, and consider factors suchas the presence of mitigations in that environment. Environmental metrics may refine therelative severity posed by the vulnerabilities described in this document within a customer’s
environment.

Remediation
Affected Product& Version

Remediation

CVEs

Version 3.8.3 of Trio J-Series Data Radio firmware
includes a fix for vulnerability CVE-2023-5629 and isavailable for download here:
https://www.se.com/us/en/product-range/61420-triolicensefree-radios#software-and-firmware
Trio J-Series
Data Radio
Versions prior tov3.8.3

Instructions should be followed from Section 9 Part I –Firmware Updating and Maintenance in the Trio J Series
Data Radio User Manual, available here:

CVE-20235629

https://download.schneiderelectric.com/files?p_Doc_Ref=Trio_JSeries_User_Manual&p_enDocType=User+guide&p_File_Name=Trio+JSeries+Ethernet+Data+Radio+User+Manual.pdf
This section provides information on how to download,
install, and verify the new firmware version.
Version 2.7.0 of Trio Q-Series Data Radio firmware
includes a fix for vulnerability CVE-2023-5629 and isavailable for download here:

Trio Q-Series
Data Radio
Versions prior tov2.7.0

https://www.se.com/us/en/download/document/TrioQFirmware/CVE-20235629Instructions should be followed from Section 10 Part J –Firmware Updating and Maintenance in the Trio Q Data
Radio User Manual, available here:

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Schneider Electric Security Notification
https://download.schneiderelectric.com/files?p_Doc_Ref=Trio+Q+Data+Radio+Use
r+Manual&p_enDocType=User+guide&p_File_Name=Tri
o+Q+Data+Radio+User+Manual.pdf
This section provides information on how to download,
install, and verify the new firmware version.
Customers should use appropriate patching methodologies when applying these patches totheir systems. We strongly recommend the use of back-ups and evaluating the impact of thesepatches in a Test and Development environment or on an offline infrastructure. Contact
Schneider Electric’s Customer Care Center if you need assistance removing a patch.
If customers choose not to apply the remediation provided above, they should immediately
apply the following mitigations to reduce the risk of exploit.

Mitigations
Affected Product &Version
Trio Q-Series DataRadioVersions prior tov2.7.0
Trio E-Series
Ethernet Data RadioAll versions in themodels: ER45e,EB45e, EH45e
Trio J-Series
Ethernet Data Radio
Versions prior tov3.8.3
Trio Q-Series Data
RadioAll Versions
Trio E-Series
Ethernet Data RadioAll Versions

Mitigations

CVEs

Customers should only use up to date browsers, toaccess the login page for Trio E and Q Series radios.
These browsers automatically prevent “OpenRedirect” HTTP attempts.
Note: Trio E-Series Ethernet Data Radio product hasreached its end of life and is no longer supported.

CVE-20235629

Customers should immediately apply the above
mitigations to reduce the risk of exploit.

Trio Data Radios should be installed in a secure
location to prevent physical access by unauthorized
personnel, and appropriate password protections putin place to prevent remote access by unauthorized
personnel.
Firmware loaded in Trio Data Radios should be
confirmed using the hash published with the release
notes and following the instructions in Section 10 PartJ – Firmware Updating and Maintenance in the Trio Q
Data Radio User Manual, available here:

CVE-20235630

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https://download.schneiderelectric.com/files?p_Doc_Ref=Trio+Q+Data+Radio+U
ser+Manual&p_enDocType=User+guide&p_File_Nam
e=Trio+Q+Data+Radio+User+Manual.pdf
This section provides information on how to
download, install, and verify the new firmware.
Trio Data Radios should be installed in a secure
location to prevent physical access by unauthorized
personnel, and appropriate password protections put
in place to prevent remote access by unauthorized
personnel.

Trio J-Series
Ethernet Data RadioAll versions

Firmware loaded in Trio Data Radios should beconfirmed using the hash published with the release
notes and following the instructions in Section 9 Part I– Firmware Updating and Maintenance in the Trio J
Data Radio User Manual, available here:

CVE-20235630

https://download.schneiderelectric.com/files?p_Doc_Ref=Trio_JSeries_User_Ma
nual&p_enDocType=User+guide&p_File_Name=Trio+J-Series+Ethernet+Data+Radio+User+Manual.pdf
This section provides information on how to
download, install, and verify the new firmware.
To ensure you are informed of all updates, including details on affected products andremediation plans, subscribe to Schneider Electric’s security notification service here:
https://www.se.com/en/work/support/cybersecurity/security-notifications.jsp

General Security Recommendations
We strongly recommend the following industry cybersecurity best practices:•••••

Locate control and safety system networks and remote devices behind firewalls andisolate them from the business network.
Install physical controls so no unauthorized personnel can access your industrial control
and safety systems, components, peripheral equipment, and networks.
Place all controllers in locked cabinets and never leave them in the “Program” mode.
Never connect programming software to any network other than the network intended forthat device.
Scan all methods of mobile data exchange with the isolated network such as CDs, USBdrives, etc. before use in the terminals or any node connected to these networks.

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Schneider Electric Security Notification•••

Never allow mobile devices that have connected to any other network besides theintended network to connect to the safety or control networks without proper sanitation.
Minimize network exposure for all control system devices and systems and ensure thatthey are not accessible from the Internet.
When remote access is required, use secure methods, such as Virtual Private Networks(VPNs). Recognize that VPNs may have vulnerabilities and should be updated to themost current version available. Also, understand that VPNs are only as secure as theconnected devices.

For more information refer to the Schneider Electric Recommended Cybersecurity Best
Practices document.

Acknowledgements
Schneider Electric recognizes the following researcher for identifying and helping to coordinatea response to these vulnerabilities:
CVE

Researcher

CVE-2023-5629
CVE-2023-5630

The UK's National Cyber Security Centre (NCSC)

For More Information
This document provides an overview of the identified vulnerability or vulnerabilities and actions
required to mitigate. For more details and assistance on how to protect your installation, contact
your local Schneider Electric representative or Schneider Electric Industrial Cybersecurity
Services: https://www.se.com/ww/en/work/solutions/cybersecurity/. These organizations will befully aware of this situation and can support you through the process.
For further information related to cybersecurity in Schneider Electric’s products, visit thecompany’s cybersecurity support portal page:https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp

LEGAL DISCLAIMER
THIS NOTIFICATION DOCUMENT, THE INFORMATION CONTAINED HEREIN, AND ANY MATERIALSLINKED FROM IT (COLLECTIVELY, THIS “NOTIFICATION”) ARE INTENDED TO HELP PROVIDE AN
OVERVIEW OF THE IDENTIFIED SITUATION AND SUGGESTED MITIGATION ACTIONS,REMEDIATION, FIX, AND/OR GENERAL SECURITY RECOMMENDATIONS AND IS PROVIDED ON AN“AS-IS” BASIS WITHOUT WARRANTY OR GUARANTEE OF ANY KIND. SCHNEIDER ELECTRICDISCLAIMS ALL WARRANTIES RELATING TO THIS NOTIFICATION, EITHER EXPRESS OR IMPLIED,INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
SCHNEIDER ELECTRIC MAKES NO WARRANTY THAT THE NOTIFICATION WILL RESOLVE THE
IDENTIFIED SITUATION. IN NO EVENT SHALL SCHNEIDER ELECTRIC BE LIABLE FOR ANYDAMAGES OR LOSSES WHATSOEVER IN CONNECTION WITH THIS NOTIFICATION, INCLUDING

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DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIALDAMAGES, EVEN IF SCHNEIDER ELECTRIC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCHDAMAGES. YOUR USE OF THIS NOTIFICATION IS AT YOUR OWN RISK, AND YOU ARE SOLELYLIABLE FOR ANY DAMAGES TO YOUR SYSTEMS OR ASSETS OR OTHER LOSSES THAT MAYRESULT FROM YOUR USE OF THIS NOTIFICATION. SCHNEIDER ELECTRIC RESERVES THE RIGHTTO UPDATE OR CHANGE THIS NOTIFICATION AT ANY TIME AND IN ITS SOLE DISCRETION.
About Schneider Electric
Schneider’s purpose is to empower all to make the most of our energy and resources, bridging progress andsustainability for all. We call this Life Is On.
Our mission is to be your digital partner for Sustainability and Efficiency.
We drive digital transformation by integrating world-leading process and energy technologies, end-point to cloudconnecting products, controls, software and services, across the entire lifecycle, enabling integrated company
management, for homes, buildings, data centers, infrastructure and industries.
We are the most local of global companies. We are advocates of open standards and partnership ecosystems thatare passionate about our shared Meaningful Purpose, Inclusive and Empowered values.
www.se.com

Revision Control:
Version 1.0.0
12 December 2023

Original Release

Version 2.0.0
09 April 2024

A remediation is now available for Trio J-Series
Ethernet Data Radio on CVE-2023-5629.

CPCERT

Digitally signed by CPCERT
Date: 2024.04.08 10:06:35 -04'00'

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