{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20744","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","state":"PUBLISHED","assignerShortName":"icscert","dateReserved":"2026-01-27T23:33:47.834Z","datePublished":"2026-07-10T22:07:23.971Z","dateUpdated":"2026-07-10T22:07:23.971Z"},"containers":{"cna":{"providerMetadata":{"orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","shortName":"icscert","dateUpdated":"2026-07-10T22:07:23.971Z"},"title":"Hydro-Québec Le Circuit Electrique charging station backend Improper Access Control","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-284","description":"CWE-284","type":"CWE"}]}],"affected":[{"vendor":"Hydro-Québec","product":"Le Circuit Electrique charging station backend","versions":[{"status":"affected","version":"0","lessThan":"June_2026","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"The charging station websocket endpoint accepts connections without \nproper authentication, which could lead to privilege escalation.","supportingMedia":[{"type":"text/html","base64":false,"value":"The charging station websocket endpoint accepts connections without \nproper authentication, which could lead to privilege escalation."}]}],"references":[{"url":"https://www.hydroquebec.com/nous-joindre/"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-188-01"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-188-01.json"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"CRITICAL","baseScore":9.8,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"CRITICAL","baseScore":9.3,"vectorString":"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"}}],"solutions":[{"lang":"en","value":"Hydro-Québec has updated the majority of charging stations to disable \nOCPP, mitigating the risk of exploitation. Hydro-Québec has also \nimplemented authentication systems to mitigate the issue for certain \ncharging stations which are still reliant on OCPP. Contact Hydro-Québec \nwith any additional questions.","supportingMedia":[{"type":"text/html","base64":false,"value":"Hydro-Québec has updated the majority of charging stations to disable \nOCPP, mitigating the risk of exploitation. Hydro-Québec has also \nimplemented authentication systems to mitigate the issue for certain \ncharging stations which are still reliant on OCPP. Contact Hydro-Québec \nwith any additional questions."}]}],"credits":[{"lang":"en","value":"An anonymous researcher reported this vulnerability to CISA","type":"finder"}],"source":{"advisory":"ICSA-26-188-01","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.2"}}}}