Vulnerability in Hydro-Québec Le Circuit Electrique Charging Station Backend

CVE-2026-44383

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.006 (45.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-44383: held from 0.006 to 0.006.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-44383?
CVE-2026-44383 is a high-severity vulnerability in Hydro-Québec Le Circuit Electrique Charging Station Backend, classified under Insufficient Session Expiration. CVSS score: 7.5/10. Published 2026-07-10.
How severe is CVE-2026-44383?
High severity. CVSS v3 base score is 7.5 out of 10.