{"id":"CVE-2026-20744","aliases":["EUVD-2026-43094","GHSA-v4hh-p8gf-c722"],"status":"published","title":"Hydro-Québec Le Circuit Electrique charging station backend Improper Access Control","description":"The charging station websocket endpoint accepts connections without \nproper authentication, which could lead to privilege escalation.","severity":{"version":"4.0","score":9.3,"vector":"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00758,"percentile":0.55536,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-284"],"published":"2026-07-10T22:07:23Z","modified":"2026-10-25T15:10:00Z","products":[{"vendor":"hydro-québec","product":"le circuit electrique charging station backend"}],"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"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20744"},{"url":"https://www.hydroquebec.com/nous-joindre"},{"url":"https://github.com/advisories/GHSA-v4hh-p8gf-c722"}],"sources":{"cve":[{"id":"CVE-2026-20744","title":"Hydro-Québec Le Circuit Electrique charging station backend Improper Access Control","description":"The charging station websocket endpoint accepts connections without \nproper authentication, which could lead to privilege escalation.","status":"published","published":"2026-07-10T22:07:23.971Z","modified":"2026-07-14T14:34:32.306Z","cvss":[{"version":"4.0","score":9.3,"vector":"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","level":"critical","assessor":"cna"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T13:35:33.380441Z"}],"euvd":[{"id":"EUVD-2026-43094","description":"The charging station websocket endpoint accepts connections without \nproper authentication, which could lead to privilege escalation.","status":"published","published":"2026-07-10T22:07:23Z","modified":"2026-07-14T14:34:32Z","cvss":[{"version":"4.0","score":9.3,"vector":"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","level":"critical"}],"updated_at":"2026-11-02T18:19:59.713046Z"}],"ghsa":[{"id":"GHSA-v4hh-p8gf-c722","title":"The charging station websocket endpoint accepts connections without \nproper authentication, which...","description":"The charging station websocket endpoint accepts connections without \nproper authentication, which could lead to privilege escalation.","status":"published","published":"2026-07-11T00:31:50Z","modified":"2026-07-11T00:31:56Z","cvss":[{"version":"4.0","score":9.3,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:09:24.04976Z"}],"nvd":[{"id":"CVE-2026-20744","description":"The charging station websocket endpoint accepts connections without \nproper authentication, which could lead to privilege escalation.","status":"published","published":"2026-07-10T23:16:47.683Z","modified":"2026-10-25T15:10:00.147Z","cvss":[{"version":"4.0","score":9.3,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:12:28.771746Z"}]}}