Hydro-Québec Le Circuit Electrique charging station backend

View CSAF Summary Successful exploitation of these vulnerabilities could lead to privilege escalation, or result in a denial-of-service attack. The following versions of Hydro-Québec Le Circuit Electrique charging station backend are affected: Le Circuit Electrique charging station backend CVSS Vendor Equipment Vulnerabilities v3 9.8 Hydro-Québec Hydro-Québec Le Circuit Electrique charging station backend Improper Access Control, Improper Restriction of Excessive Authentication Attempts, Insufficient Session Expiration Background Critical Infrastructure Sectors: Transportation Systems Countries/Areas Deployed: Canada Company Headquarters Location: Canada Vulnerabilities Expand All + CVE-2026-20744 The charging station websocket endpoint accepts connections without proper authentication, which could lead to privilege escalation. View CVE Details Affected Products Hydro-Québec Le Circuit Electrique charging station backend Vendor: Hydro-Québec Product Version: Hydro-Québec Le Circuit Electrique charging station backend: <June_2026 Product Status: known_affected Remediations Mitigation Hydro-Québec has updated the majority of charging stations to disable OCPP, mitigating the risk of exploitation. Hydro-Québec has also implemented authentication systems to mitigate the issue for certain charging stations which are still reliant on OCPP. Contact Hydro-Québec with any additional questions. Relevant CWE: CWE-284 Improper Access Control Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-42952 Previously, there was no throttling on repeated authentication attempts to the charging station backend, which could allow an attacker to execute a Denial-of-Service attack. View CVE Details Affected Products Hydro-Québec Le Circuit Electrique charging station backend Vendor: Hydro-Québec Product Version: Hydro-Québec Le Circuit Electrique charging station backend: <June_2026 Product Status: known_affected Remediations Mitigation Hydro-Québec has updated the majority of charging stations to disable OCPP, mitigating the risk of exploitation. Hydro-Québec has also implemented authentication systems to mitigate the issue for certain charging stations which are still reliant on OCPP. Contact Hydro-Québec with any additional questions. Relevant CWE: CWE-307 Improper Restriction of Excessive Authentication Attempts Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-44383 Multiple connections to the backend using the same charging station ID are allowed, which could allow an attacker to deploy multiple instances of malicious OCPP clients to overwhelm the backend. View CVE Details Affected Products Hydro-Québec Le Circuit Electrique charging station backend Vendor: Hydro-Québec Product Version: Hydro-Québec Le Circuit Electrique charging station backend: <June_2026 Product Status: known_affected Remediations Mitigation Hydro-Québec has updated the majority of charging stations to disable OCPP, mitigating the risk of exploitation. Hydro-Québec has also implemented authentication systems to mitigate the issue for certain charging stations which are still reliant on OCPP. Contact Hydro-Québec with any additional questions. Relevant CWE: CWE-613 Insufficient Session Expiration Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Acknowledgments An anonymous researcher reported these vulnerabilities to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practic