VDB-377672 · CVE-2026-42952 · EUVD-2026-43095

Hydro-Quebec Le Circuit Electrique charging station backend Authentication denial of service

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.
6.5	$0-$5k	0.57+

Summaryinfo

A vulnerability categorized as critical has been discovered in Hydro-Quebec Le Circuit Electrique charging station backend. This impacts an unknown function of the component Authentication. Such manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2026-42952. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Hydro-Quebec Le Circuit Electrique charging station backend (affected version unknown) and classified as critical. Affected by this issue is an unknown functionality of the component Authentication. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

Previously, there was no throttling on repeated authentication attempts to the charging station backend, which could allow an attacker to execute a denial-of-service attack.

The advisory is shared for download at hydroquebec.com. This vulnerability is handled as CVE-2026-42952 since 05/07/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

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-2026-43095). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Hydro-Quebec

Name

Le Circuit Electrique charging station backend

CPE 2.3info

🔒

CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/07/2026 CVE reserved
07/10/2026 +64 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-2026-42952 (🔒)
GCVE (CVE): GCVE-0-2026-42952
GCVE (VulDB): GCVE-100-377672
EUVD: 🔒

Entryinfo

Created: 07/11/2026 00:46
Updated: 07/11/2026 03:01
Changes: 07/11/2026 00:46 (50), 07/11/2026 03:01 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.