CVE-2026-20744 PUBLISHED

Hydro-Québec Le Circuit Electrique charging station backend Improper Access Control

Assigner: icscert
Reserved: 27.01.2026 Published: 10.07.2026 Updated: 10.07.2026

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

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

CVSS Vector: 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
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Hydro-Québec
Product	Le Circuit Electrique charging station backend
Versions	Default: unaffected affected from 0 to June_2026 (excl.)

Solutions

Hydro-Québec has updated the majority of charging stations to disable OCPP, mitigating the risk of exploitation. Hydro-Québec has also implemented authentication systems to mitigate the issue for certain charging stations which are still reliant on OCPP. Contact Hydro-Québec with any additional questions.

CVE-2026-20744 PUBLISHED

Hydro-Québec Le Circuit Electrique charging station backend Improper Access Control

Metrics

Product Status

Solutions

Credits

References

Problem Types