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Vulnerability record · CVE-2026-20744 · published 10 July 2026

CVE-2026-20744: Improper access control vulnerability

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

9.3 CVSS 4.0 Critical EPSS 0.76% · top 46.6% CWE-284 · Improper access control Deferred
9.3CVSS 4.0 base score
0.76%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
14 Jul 2026Last modified by NVD

Description

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

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:

References

LinkTags
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-188-01.json
https://www.cisa.gov/news-events/ics-advisories/icsa-26-188-01
https://www.hydroquebec.com/nous-joindre/

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-20744), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.