Schneider Electric Patches Critical Vulnerability in EcoStruxure Process Expert (CVE-2026-23080)

Schneider Electric Addresses Critical Vulnerability in EcoStruxure Process Expert

Schneider Electric has released security updates to mitigate a critical vulnerability (CVE-2026-23080) affecting its EcoStruxure Process Expert and EcoStruxure Process products for AVEVA System Platform. The flaw, disclosed by the Cybersecurity and Infrastructure Security Agency (CISA), could allow threat actors to execute arbitrary code remotely if exploited.

Technical Details

The vulnerability (ICSMA-26-022-01) is classified as an improper input validation issue, carrying a CVSS v3.1 base score of 9.8 (Critical). It affects the following product versions:

• EcoStruxure Process Expert (all versions prior to v2023)
• EcoStruxure Process (all versions prior to v2023)

Successful exploitation could enable attackers to execute remote code, potentially leading to unauthorized system access, process disruption, or data manipulation in industrial control environments. No public exploits or active attacks have been reported as of this advisory.

Impact Analysis

EcoStruxure Process Expert is widely deployed in critical infrastructure sectors, including energy, water, and manufacturing. A compromise could result in:

• Operational downtime in industrial processes
• Safety risks due to manipulated control systems
• Data breaches if sensitive process data is exfiltrated

Recommendations

Schneider Electric urges users to upgrade to v2023 or later immediately. Additional mitigation steps include:

• Isolating affected systems from untrusted networks
• Implementing network segmentation to limit lateral movement
• Monitoring for suspicious activity in OT environments

For full technical details, refer to the CISA advisory or the CSAF document.

This vulnerability underscores the importance of timely patching in OT environments, where legacy systems often lack modern security controls.