Schneider Electric Easergy MiCOM Px40 Series

View CSAF Summary Schneider Electric is aware of a vulnerability in its Easergy MiCOM Px40 Series products. The [Easergy MiCOM Px40](https://www.se.com/ww/en/product-subcategory/4725-easergy-micom-px40-series/?filter=business-6-medium-voltage-distribution-and-grid-automation) is a protection relay series for Medium Voltage, High Voltage and Extra High Voltage protection. Failure to apply the mitigations provided below may risk unauthorized exposure of basic device identification through the SNMP protocol. The following versions of Schneider Electric Easergy MiCOM Px40 Series are affected: Easergy MiCOM P14x All versions prior to B4A Easergy MiCOM P24x All versions prior to D3A Easergy MiCOM P341 All versions prior to E3F Easergy MiCOM P342, P343, P344, P345 All versions prior to B3F Easergy MiCOM P442, P444 All versions prior to E3A Easergy MiCOM P443, P445, P446, P543, P544, P545, P546 All versions prior to H6A Easergy MiCOM P841 All versions prior to G6A Easergy MiCOM P643 All versions prior to B3F Easergy MiCOM P642, P645 All versions prior to B4A Easergy MiCOM P741, P742, P743 All versions prior to B2A Easergy MiCOM P746 All versions prior to B4E Easergy MiCOM P746 All versions prior to C4E Easergy MiCOM P849 All versions prior to B4A CVSS Vendor Equipment Vulnerabilities v3 5.3 Schneider Electric Schneider Electric Easergy MiCOM Px40 Series Use of Hard-coded Credentials Background Critical Infrastructure Sectors: Critical Manufacturing, Energy, Transportation Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: France Vulnerabilities Expand All + CVE-2026-4832 CWE-798 Use of Hard-coded Credentials vulnerability exists that could cause unauthorized access to sensitive device information when an unauthenticated attacker is able to interrogate the SNMP port. View CVE Details Affected Products Schneider Electric Easergy MiCOM Px40 Series Vendor: Schneider Electric Product Version: Easergy MiCOM P14x All versions prior to B4A, Easergy MiCOM P24x All versions prior to D3A, Easergy MiCOM P341 All versions prior to E3F, Easergy MiCOM P342, P343, P344, P345 All versions prior to B3F, Easergy MiCOM P442 P444 All versions prior to E3A, Easergy MiCOM P443, P445, P446, P543, P544, P545, P546 All versions prior to H6A, Easergy MiCOM P841 All versions prior to G6A, Easergy MiCOM P643 All versions prior to B3F, Easergy MiCOM P642, P645 All versions prior to B4A, Easergy MiCOM P741, P742, P743 All versions prior to B2A, Easergy MiCOM P746 All versions prior to B4E, Easergy MiCOM P746 All versions prior to C4E, Easergy MiCOM P849 All versions prior to B4A Product Status: known_affected Remediations Mitigation For customers who do not require SNMP Contact Schneider Electric's [Customer Care Center](https://www.se.com/ww/en/work/support/contacts.jsp) to upgrade the Firmware to a version without SNMP functionality. If customers choose not to apply the upgrade provided above, they should immediately apply the following mitigations to reduce the risk of exploit: * Use relays only in a protected network environment, * Use firewalls to protect and separate the control system network from other networks, * Use VPN (Virtual Private Networks) tunnels if remote access is required. For customers who require SNMP Please immediately apply the following mitigations to reduce the risk of exploit: * Use relays only in a protected network environment, * Use firewalls to protect and separate the control system network from other networks, * Use VPN (Virtual Private Networks) tunnels if remote access is required. Relevant CWE: CWE-798 Use of Hard-coded Credentials Metrics CVSS Version Base Score Base Severity Vector String 3.1 5.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Acknowledgments Schneider Electric CPCERT 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 fir