---
id: CVE-2026-20744
title: |-
  The charging station websocket endpoint accepts connections without 
  proper authentication, which could lead to privilege escalation.
summary: |-
  The charging station websocket endpoint accepts connections without 
  proper authentication, which could lead to privilege escalation.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-284
published: '2026-07-10'
updated: '2026-07-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20744'
references:
  - url: >-
      https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-188-01.json
    label: ics-cert@hq.dhs.gov
  - url: 'https://www.cisa.gov/news-events/ics-advisories/icsa-26-188-01'
    label: ics-cert@hq.dhs.gov
  - url: 'https://www.hydroquebec.com/nous-joindre/'
    label: ics-cert@hq.dhs.gov
tags:
  - nvd
epss: 0.00758
epssPercentile: 0.53758
ingestedAt: '2026-07-11T22:16:00.978Z'
---

## Overview

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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.