CVE-2026-44383

Hydro-Québec Le Circuit Electrique charging station backend Insufficient Session Expiration

Published Jul 10, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
Multiple connections to the backend using the same charging station ID
are allowed, which could allow an attacker to deploy multiple instances
of malicious OCPP clients to overwhelm the backend.

Remediation

Vendor Solution

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.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Hydro-québec
Hydro-québec le Circuit Electrique Charging Station Backend
Vendors & Products Hydro-québec
Hydro-québec le Circuit Electrique Charging Station Backend
Type Values Removed Values Added
Description Multiple connections to the backend using the same charging station ID are allowed, which could allow an attacker to deploy multiple instances of malicious OCPP clients to overwhelm the backend.
Title Hydro-Québec Le Circuit Electrique charging station backend Insufficient Session Expiration
Weaknesses CWE-613
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Jul 13, 2026, 3:34 PM
Reserved
May 7, 2026, 4:55 PM
Status
Deferred
Published
Jul 10, 2026, 11:16 PM
Modified
Oct 25, 2026, 3:10 PM