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Description

The charging station websocket endpoint accepts connections without proper authentication, which could lead to privilege escalation.

PUBLISHED Reserved 2026-01-27 | Published 2026-07-10 | Updated 2026-07-14 | Assigner icscert




CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-284

Product status

Default status
unaffected

Any version before June_2026
affected

Credits

An anonymous researcher reported this vulnerability to CISA finder

References

www.hydroquebec.com/nous-joindre/

www.cisa.gov/news-events/ics-advisories/icsa-26-188-01

github.com/...p/csaf_files/OT/white/2026/icsa-26-188-01.json

cve.org (CVE-2026-20744)

nvd.nist.gov (CVE-2026-20744)

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