Republished vendor advisory. This ICSA is a verbatim republication of Schneider Electric CPCERT SEVD-2025-133-04 from a direct conversion of their 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.…
General Security Recommendations: We strongly recommend the following industry cybersecurity best practices. * Locate control and safety system networks and remote devices behind firewalls and isolate 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 for that device. * Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these networks. * Never allow mobile devices that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation. * Minimize network exposure for all control system devices and systems and ensure that they 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 the most current version available. Also, understand that VPNs are only as secure as the connected devices. For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices https://www.se.com/us/en/download/document/7EN52-0390/ document.
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 be fully aware of this situation and can support you through the process. Customers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches 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. For further information related to cybersecurity in Schneider Electric’s products, visit the company’s cybersecurity support portal page: https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp
About Schneider Electric: Schneider's purpose is to create Impact by empowering all to make the most of our energy and resources, bridging progress and sustainability for all. We call this Life Is On. Our mission is to be the trusted partner in Sustainability and Efficiency. We are a global industrial technology leader bringing world-leading expertise in electrification, automation and digitization to smart industries, resilient infrastructure, future-proof data centers, intelligent buildings, and intuitive homes. Anchored by our deep domain expertise, we provide integrated end-to-end lifecycle AI enabled Industrial IoT solutions with connected products, automation, software and services, delivering digital twins to enable profitable growth for our customers. We are a people company with an ecosystem of 150,000 colleagues and more than a million partners operating in over 100 countries to ensure proximity to our customers and stakeholders. We embrace diversity and inclusion in everything we do, guided by our meaningful purpose of a sustainable future for all.
Vulnerability Details: Schneider Electric is aware of a vulnerability disclosed in the Silicon Labs Gecko Bootloader used in the Wiser AvatarOn 6K Freelocate and Wiser Cuadro H 5P Socket products. The Wiser AvatarOn 6K Freelocate https://www.se.com/sg/en/product/E8334RWMZB_WE/wiser-avataron-battery-powered-pushbutton-4k-white/ and Wiser Cuadro H 5P Socket https://www.se.com/nz/en/product/PDL395CSG/grid-wiser-connected-double-socket-iconic-smart-10a-ble-default-240v/ are home automation products. Failure to apply the mitigations provided below may risk buffer overflow vulnerability, which could result in persistent code execution of the attacker’s code.
Credit: Schneider Electric CPCERT
From CISA's machine-readable CSAF 2.0 advisory (JSON).
| CVE | Weakness | CVSS v3 | Details |
|---|---|---|---|
| CVE-2023-4041 | CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | 9.8 Critical |
CVE-2023-4041 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'), Out-of-bounds Write, Download of Code Without Integrity Check vulnerability in Silicon Labs Gecko Bootloader on ARM (Firmware Update File Parser modules) allows Code Injection, Authentication Bypass.This issue affects 'Standalone' and 'Application' versions of Gecko Bootloader. Mitigation: PrismaSeT Active - Wireless Panel Server product has reached its end of life and is no longer supported. Customers should immediately apply the following mitigations to reduce the risk of exploit: * Deactivate Bluetooth Low (BLE) communication of Wireless Pan… Affected, fixed & timelineAffected:
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Scores and weakness types are as CISA or the republishing vendor stated them in this advisory; the linked CVE pages carry the independently enriched CVSS and SSVC assessments.
No coverage found in monitored research blogs or news feeds.
| CVE | CVSS | Affected |
|---|---|---|
| CVE-2023-4041 | 9.8 Critical | Silicon Labs Gecko Bootloader Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'), Out-of-bounds Write, Download of Code Without Integrity Check vulnerability i… |
Named by the advisory itself. Each CVE links to its tracked detail page.
Each vendor links to its Known Exploited Vulnerabilities catalog page. Only vendors that appear in the KEV catalog are listed, either because the publication cites one of their KEV entries or because it names them directly.