Schneider Electric IGSS

View CSAF Summary Schneider Electric is aware of a vulnerability in its IGSS Definition module for the IGSS Interactive Graphical SCADA System product The IGSS product is a state-of-the-art SCADA system used for monitoring and controlling industrial processes The IGSS Definition module is a design-time component used by system integrators to create mimic diagrams for plant personnel enabling them to monitor and control the SCADA system Failure to apply the remediation provided below may risk loss of data or arbitrary code execution which could result in the loss of control of the system The following versions of Schneider Electric IGSS are affected IGSS Version IGSS Definition module vers 18.0.0.26124 18.0.0.26125 CVSS Vendor Equipment Vulnerabilities v3 7.8 Schneider Electric Schneider Electric IGSS Out-of-bounds Write Background Critical Infrastructure Sectors Commercial Facilities Critical Manufacturing Energy Countries Areas Deployed Worldwide Company Headquarters Location France Vulnerabilities Expand All CVE-2026-12927 An out-of-bounds write vulnerability exists that could cause loss of data or potentially risk arbitrary code execution when a malicious CGF file is imported to IGSS Definition Affected Products Schneider Electric IGSS Vendor Schneider Electric Product Version Product Status fixed known_affected Remediations Vendor fix Version 18.0.0.26125 of the IGSS Definition module includes a fix for this vulnerability and is available for download through IGSS Master > Update IGSS Software or here https://igss.schneider-electric.com/igss/igssupdates/v180/IGSSUPDATEZIP https://igss.schneider-electric.com/igss/igssupdates/v180/IGSSUPDATEZIP Mitigation If customers choose not to apply the remediation provided above they should immediately apply the following mitigations to reduce the risk of exploit Avoid executing commands importing or opening files from untrusted sources Relevant CWE CWE-787 Out-of-bounds Write Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.8 HIGH CVSS31AVLACPRUI SUC H I A Acknowledgments Schneider Electric reported this vulnerability to CISA Michael Heinzl reported this vulnerability to CISA 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 Recognizing VPNs may have vulnerabilities and should be updated to the most current version available Also understand VPNs are only as secure as its connected devices For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document httpswwsecomusen/download/document/7EN52-0390 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 httpswwsecom/ww/en/work/solutions/cybersecurity These organizations will be fully aware of this situation and can support you through the process For further information related to cybersecurity in Schneider Electric’s products visit the company’s cybersecurity support portal page httpswwsecom/ww/en/work/support/cybersecurity/overviewjsp LEGAL DISCLAIMER THIS NOTIFICATION DOCUMENT THE INFORMATION CONTAINED HEREIN AND ANY MATERIALS LINKED FROM IT (COLLECTIVELY THIS “NOTIFICATION”) ARE INTENDED TO HELP PROVIDE AN OVERVIEW OF THE IDENTIFIED SITUATION AND SUGGESTED MITIGATION ACTIONS REMEDIATION FIX ANDOR GENERAL SECURITY RECOMMENDATIONS AND IS PROVIDED ON AN “AS-IS” BASIS WITHOUT WARRANTY OR GUARANTEE OF ANY KIND SCHNEIDER ELECTRIC DISCLAIMS 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 ANY DAMAGES OR LOSSES WHATSOEVER IN CONNECTION WITH THIS NOTIFICATION INCLUDING DIRECT INDIRECT INCIDENTAL CONSEQUENTIAL LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES EVEN IF SCHNEIDER ELECTRIC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES YOUR USE OF THIS NOTIFICATION IS AT YOUR OWN RISK AND YOU ARE SOLELY LIABLE FOR ANY DAMAGES TO YOUR SYSTEMS OR ASSETS OR OTHER LOSSES THAT MAY RESULT FROM YOUR USE OF THIS NOTIFICATION SCHNEIDER ELECTRIC RESERVES THE RIGHT TO UPDATE OR CHANGE THIS NOTIFICATION AT ANY TIME AND IN ITS SOLE DISCRETION 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 150000 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 wwwsecom Legal Notice and Terms of Use This product is provided subject to this Notification httpswwwcisagov/notification and this Privacy & Use policy httpswwwcisagov/privacy-policy Recommended Practices CISA recommends users take defensive measures to minimize the exploitation risk of these vulnerabilities Minimize network exposure for all control system devices andor systems and ensure they are not accessible from the Internet Locate control system networks and remote devices behind firewalls and isolate them from business networks 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 recent version available Also recognize VPN is only as secure as its 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 cisagov 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 Advisory Conversion Disclaimer This ICSA is a verbatim republication of Schneider Electric SEVD-2026-195-01 from a direct conversion of the 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 Further CISA does not endorse any commercial product or service Please contact Schneider Electric directly for any questions regarding this advisory Revision History Initial Release Date 2026-07-14 Date Revision Summary 2026-07-14 1 Original Release 2026-07-30 2 Initial CISA Republication of Schneider Electric SEVD-2026-195-01 advisory