ICSA-26-078-01
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Published 2026-03-19
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View on CISA ICS-CERT ↗
Schneider Electric Modicon M241, M251, and M262
CVSS 5.3
MEDIUM
CVEs (1)
Remediations
- Modicon Controller M241 Firmware version 5.4.13.12 delivered with EcoStruxure™ Machine Expert v2.5.0.1 includes a fix for this vulnerability and can be installed through Schneider Electric Software Installer available here: https://www.se.com/ww/en/download/document/ESEMACS10_INSTALLER/ On the engineering workstation install v2.5.0.1 of EcoStruxure™ Machine Expert. For help refer to Schneider Electric Software Installer User Guide available here: https://www.se.com/ww/en/download/document/EIO0000005500/ Update Modicon Controller M241 to the latest Firmware and perform reboot. For instructions refer to Modicon M241 Logic Controller, Programming Guide: https://www.se.com/ww/en/download/document/EIO0000003059/
- Modicon Controller M251 Firmware version 5.4.13.12 delivered with EcoStruxure™ Machine Expert v2.5.0.1 includes a fix for this vulnerability and can be installed through Schneider Electric Software Installer available here: https://www.se.com/ww/en/download/document/ESEMACS10_INSTALLER/ On the engineering workstation install v2.5.0.1 of EcoStruxure™ Machine Expert. For help refer to Schneider Electric Software Installer User Guide available here: https://www.se.com/ww/en/download/document/EIO0000005500/ Update Modicon Controller M251 to the latest Firmware and perform reboot. For instructions refer to Modicon M251 Logic Controller, Programming Guide: https://www.se.com/ww/en/download/document/EIO0000003089/
- Modicon Controller M262 Firmware version 5.4.10.12 delivered with EcoStruxure™ Machine Expert v2.5 includes a fix for this vulnerability and can be installed through Schneider Electric Software Installer available here: https://www.se.com/ww/en/download/document/ESEMACS10_INSTALLER/ On the engineering workstation install v2.5.0.1 of EcoStruxure™ Machine Expert. For help refer to Schneider Electric Software Installer User Guide available here: https://www.se.com/ww/en/download/document/EIO0000005500/ Update Modicon Controller M262 to the latest Firmware and perform reboot. For instructions refer to Modicon M262 Logic/Motion Controller, Programming Guide: https://www.se.com/ww/en/download/document/EIO0000003651/
- If customers choose not to apply the remediation provided above, they should immediately apply the following mitigations to reduce the risk of exploit: Use controllers and devices only in a protected environment to minimize network exposure and ensure that they are not accessible from public internet or untrusted networks. • Filter ports and IP through the embedded firewall. • Use encrypted communication links. • Use VPN (Virtual Private Networks) tunnels if remote access is required. • The “Cybersecurity Guidelines for EcoStruxure Machine Expert, Modicon and PacDrive Controllers and Associated Equipment” provide product specific hardening guidelines
Affected Vendors
Schneider Electric
Affected Products (6)
Schneider Electric
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Modicon M241
vers:intdot/<5.4.13.12
Schneider Electric
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Modicon M251
vers:intdot/<5.4.13.12
Schneider Electric
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Modicon M262
vers:intdot/<5.4.10.12
Schneider Electric
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Modicon M241
5.4.13.12
Schneider Electric
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Modicon M251
5.4.13.12
Schneider Electric
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Modicon M262
5.4.10.12
Affected Sectors
Commercial Facilities, Critical Manufacturing, Energy
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