Hydro-Québec Le Circuit Electrique charging station backend Charging Station WebSocket Endpoint improper authentication

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
10.0$0-$5k0.57

Summaryinfo

A vulnerability was found in Hydro-Québec Le Circuit Electrique charging station backend. It has been rated as very critical. This affects an unknown function of the component Charging Station WebSocket Endpoint. This manipulation causes improper authentication. This vulnerability is handled as CVE-2026-20744. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Hydro-Québec Le Circuit Electrique charging station backend (version unknown) and classified as very critical. Affected by this vulnerability is an unknown function of the component Charging Station WebSocket Endpoint. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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

It is possible to read the advisory at hydroquebec.com. This vulnerability is known as CVE-2026-20744 since 01/28/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/11/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-43094). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 10.0

VulDB Base Score: 10.0
VulDB Temp Score: 10.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/28/2026 CVE reserved
07/10/2026 +163 days VulDB entry created
07/11/2026 +0 days Advisory disclosed
07/11/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: hydroquebec.com
Status: Not defined

CVE: CVE-2026-20744 (🔒)
GCVE (CVE): GCVE-0-2026-20744
GCVE (VulDB): GCVE-100-377671
EUVD: 🔒

Entryinfo

Created: 07/11/2026 00:44
Updated: 07/11/2026 03:01
Changes: 07/11/2026 00:44 (51), 07/11/2026 03:01 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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