---
title: "Critical Flaws in Schneider Electric EcoStruxure Building Software Expose Systems"
short_title: "Critical flaws in Schneider Electric EcoStruxure"
description: "Schneider Electric patches high-severity vulnerabilities in EcoStruxure Building Operation Workstation and WebStation. Update now to prevent data breaches and operational disruptions."
author: "Vitus"
date: 2023-10-30
categories: [Cybersecurity, Vulnerabilities]
tags: [schneider-electric, ecostruxure, cve-2026-1227, cve-2026-1226, building-automation]
score: 0.85
cve_ids: [CVE-2026-1227, CVE-2026-1226]
---
TL;DR
Schneider Electric has patched two high-severity vulnerabilities (CVE-2026-1227 and CVE-2026-1226) in its EcoStruxure Building Operation Workstation and WebStation software. These flaws could allow attackers to access local files, execute malicious code, or cause denial-of-service conditions, leading to data breaches or operational disruptions. Users are urged to apply the latest patches immediately and follow hardening guidelines.
---
Main Content
Introduction
Schneider Electric, a global leader in energy management and automation, has addressed critical vulnerabilities in its EcoStruxure Building Operation (EBO) Workstation and WebStation software. These vulnerabilities, if exploited, could enable threat actors to disclose local files, execute arbitrary code, or disrupt building automation systems. Given the widespread deployment of EcoStruxure in critical infrastructure sectors, including healthcare, energy, and government facilities, the implications of these flaws are far-reaching.
---
Key Points
- Two high-severity vulnerabilities (CVE-2026-1227 and CVE-2026-1226) affect EcoStruxure Building Operation Workstation and WebStation versions 6.x and 7.0.x.
- Exploitation risks include unauthorized file access, code injection, and denial-of-service (DoS) conditions.
- Affected sectors span commercial facilities, energy, healthcare, government, and transportation systems worldwide.
- Patches are available for all vulnerable versions, and mitigations are provided for organizations unable to update immediately.
- Schneider Electric recommends implementing access controls, network segmentation, and multi-factor authentication (MFA) to reduce risks.
---
Technical Details
#### Vulnerability Breakdown
1. CVE-2026-1227 (CVSS 7.3 - High)
- Type: Improper Restriction of XML External Entity (XXE) Reference
- Impact: Unauthorized disclosure of local files, unauthorized interaction with the EBO system, or DoS conditions.
- Attack Vector: A local user uploads a maliciously crafted TGML graphics file to the EBO server via Workstation.
- Relevant CWE: [CWE-611](https://cwe.mitre.org/data/definitions/611.html) (Improper Restriction of XML External Entity Reference).
2. CVE-2026-1226 (CVSS 7.3 - High)
- Type: Improper Control of Generation of Code (Code Injection)
- Impact: Execution of untrusted or unintended code within the application.
- Attack Vector: Processing of a maliciously crafted TGML graphics file through the Workstation or WebStation.
- Relevant CWE: [CWE-94](https://cwe.mitre.org/data/definitions/94.html) (Improper Control of Generation of Code).
---
#### Affected Systems
The following versions of EcoStruxure Building Operation Workstation and WebStation are affected:
- EcoStruxure Building Operation Workstation:
- All 7.0.x versions prior to 7.0.3.2000 (CP1)
- All 6.x versions prior to 6.0.4.14001 (CP10)
- All 7.0.x versions prior to 7.0.2
- All 6.0.x versions prior to 6.0.4.7000 (CP5)
- EcoStruxure Building Operation WebStation:
- All 7.0.x versions prior to 7.0.3.2000 (CP1)
- All 6.x versions prior to 6.0.4.14001 (CP10)
- All 7.0.x versions prior to 7.0.2
- All 6.0.x versions prior to 6.0.4.7000 (CP5)
---
Impact Assessment
The vulnerabilities pose significant risks to organizations relying on EcoStruxure Building Operation for managing critical infrastructure. Successful exploitation could result in:
- Data breaches due to unauthorized access to local files.
- Operational disruptions caused by DoS conditions or code injection.
- Compromised building automation systems, leading to safety and security risks in sectors like healthcare, energy, and government.
Given the global deployment of EcoStruxure across multiple critical sectors, the potential for widespread impact is high. Organizations must prioritize patching and implementing mitigations to avoid exploitation.
---
Mitigation Steps
#### Vendor Fixes
Schneider Electric has released patches to address these vulnerabilities. Users are advised to update to the following versions:
- For CVE-2026-1227:
- 7.0.3.2000 (CP1): [Download Patch v7.0](https://www.se.com/myschneider/documentsDownloadCenter/detail?id=EBO-Patch-v7-0)
- 6.0.4.14001 (CP10): [Download Patch v6.0](https://www.se.com/myschneider/documentsDownloadCenter/detail?id=EBO-Patch-v6-0)
- For CVE-2026-1226:
- 7.0.2: [Download Patch v7.0](https://www.se.com/myschneider/documentsDownloadCenter/detail?id=EBO-Patch-v7-0)
- 6.0.4.7000 (CP5): [Download Patch v6.0](https://www.se.com/myschneider/documentsDownloadCenter/detail?id=EBO-Patch-v6-0)
#### Additional Mitigations
If patching is not immediately feasible, organizations should:
- Implement strong access controls to limit system access to authorized personnel.
- Enable multi-factor authentication (MFA) for EBO versions 7.0 and later.
- Use firewalls to segregate networks and protect building management systems.
- Monitor system activity regularly for signs of compromise.
- Follow Schneider Electric’s [EBO Hardening Guidelines](https://ecostruxure-building-help.se.com/bms/Topics/show.castle?id=14923&productversion=7.1&locale=en-US).
For more details, refer to Schneider Electric’s security advisory:
- [SEVD-2026-041-02 (PDF)](https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-041-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-041-02.pdf)
- [SEVD-2026-041-02 (CSAF)](https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-041-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-041-02.json)
---
General Security Recommendations
Schneider Electric and CISA recommend the following best practices to enhance cybersecurity for building automation systems:
- Isolate control and safety system networks behind firewalls and segregate them from business networks.
- Restrict physical access to industrial control systems and peripheral equipment.
- Scan all mobile data exchange methods (e.g., USB drives, CDs) before use in isolated networks.
- Minimize network exposure for control system devices and ensure they are not accessible from the internet.
- Use secure remote access methods, such as Virtual Private Networks (VPNs), and keep them updated.
- Regularly monitor system activity for signs of unauthorized access or malicious activity.
For more information, refer to:
- [Schneider Electric Recommended Cybersecurity Best Practices](https://www.se.com/us/en/download/document/7EN52-0390/)
- [CISA Industrial Control Systems Cybersecurity Best Practices](https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf)
---
Conclusion
The discovery of CVE-2026-1227 and CVE-2026-1226 in Schneider Electric’s EcoStruxure Building Operation software underscores the critical importance of proactive cybersecurity measures in building automation systems. Organizations must apply patches immediately and implement recommended mitigations to protect against potential exploits. Failure to act could result in data breaches, operational disruptions, and compromised safety in critical infrastructure sectors.
For further assistance, contact your local Schneider Electric representative or visit their [cybersecurity support portal](https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp).
---
References
[^1]: Schneider Electric. "[EcoStruxure Building Operation Software](https://www.se.com/ww/en/product-range/62111-ecostruxure-building-operation-software/#overview)". Retrieved 2023-10-30.
[^2]: CISA. "[ICSA-26-055-02: Schneider Electric EcoStruxure Building Operation Workstation](https://www.cisa.gov/news-events/ics-advisories/icsa-26-055-02)". Retrieved 2023-10-30.
[^3]: MITRE. "[CWE-611: Improper Restriction of XML External Entity Reference](https://cwe.mitre.org/data/definitions/611.html)". Retrieved 2023-10-30.
[^4]: MITRE. "[CWE-94: Improper Control of Generation of Code ('Code Injection')](https://cwe.mitre.org/data/definitions/94.html)". Retrieved 2023-10-30.