Schneider Electric IGSS

TL;DR

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 () IGSS Definition (Def.exe) module vers:intdot/<=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. View CVE Details 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/IGSSUPDATE.ZIP  https://igss.schneider-electric.com/igss/igssupdates/v180/IGSSUPDATE.ZIP 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

What Happened

Schneider Electric IGSS, reported by CISA.

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 () IGSS Definition (Def.exe) module vers:intdot/<=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. View CVE Details 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/IGSSUPDATE.ZIP  https://igss.schneider-electric.com/igss/igssupdates/v180/IGSSUPDATE.ZIP 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

For the full technical details, see the original report.

Why It Matters for Businesses

This development could affect organizations that rely on the impacted technologies or services. Unpatched systems, misconfigured infrastructure, or lack of monitoring can leave businesses exposed to exploitation, data breaches, and regulatory penalties.

How to Check Your Exposure

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Mitigation Steps

• Patch immediately, Apply vendor patches or updates as soon as they are available.
• Review configurations, Check firewall rules, access controls, and security headers.
• Monitor logs, Watch for indicators of compromise (IOCs) related to this threat.
• Update security policies, Ensure incident response plans cover this type of threat.
• Run a security scan, Use automated tools to verify your exposure.

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