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CVE-2026-20744— Hydro-Québec Le Circuit Electrique charging station backend Improper Access Control

Quick assessment

Affected
Hydro-Québec Le Circuit Electrique charging station backend
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hydro-Québec Le Circuit Electrique charging station backend是加拿大Hydro-Québec公司的一款公共电动汽车充电网络后台管理系统。 Hydro-Québec Le Circuit Electrique charging station backend June_2026之前版本存在权限许可和访问控制问题漏洞，该漏洞源于充电站WebSocket端点接受无适当身份验证的连接，可能导致权限提升。

CVSS 9.8 · Critical EPSS 0.76% · P53

Affected Version Matrix 1

VendorProduct Version RangeStatus
Hydro-Québec Le Circuit Electrique charging station backend < June_2026 affected
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I. Basic Information for CVE-2026-20744

Vulnerability Information
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Vulnerability Title
Hydro-Québec Le Circuit Electrique charging station backend Improper Access Control
Source: CVE Program / CVE List V5
Vulnerability Description
The charging station websocket endpoint accepts connections without proper authentication, which could lead to privilege escalation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Hydro-Québec Le Circuit Electrique charging station backend 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hydro-Québec Le Circuit Electrique charging station backend是加拿大Hydro-Québec公司的一款公共电动汽车充电网络后台管理系统。 Hydro-Québec Le Circuit Electrique charging station backend June_2026之前版本存在权限许可和访问控制问题漏洞，该漏洞源于充电站WebSocket端点接受无适当身份验证的连接，可能导致权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Hydro-Québec Le Circuit Electrique charging station backend 0 ~ June_2026 -

II. Public POCs for CVE-2026-20744

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III. Intelligence Information for CVE-2026-20744

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Vendor Advisories for CVE-2026-20744 (2)

Vendor Pages for CVE-2026-20744 (1)

Same Patch Batch · Hydro-Québec · 2026-07-10 · 3 CVEs total

CVE-2026-42952 7.5 HIGH Hydro-Québec Le Circuit Electrique charging station backend Improper Restriction of Excess
CVE-2026-44383 7.5 HIGH Hydro-Québec Le Circuit Electrique charging station backend Insufficient Session Expiratio

IV. Related Vulnerabilities

Same product: Le Circuit Electrique charging station backend
Same vendor: Hydro-Québec
Same weakness: CWE-284

V. Comments for CVE-2026-20744

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