What is CVE-2026-42952?

CVE-2026-42952 is a high-severity vulnerability in Hydro-québec Le Circuit Electrique Charging Station Backend, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 7.5/10. Published 2026-07-10.

How severe is CVE-2026-42952?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Hydro-québec Le Circuit Electrique Charging Station Backend

CVE-2026-42952

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.

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:H/A:N.

Affected products

Hydro-québec Le Circuit Electrique Charging Station Backend — versions 0

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

References

ics-cert@hq.dhs.gov
ics-cert@hq.dhs.gov
ics-cert@hq.dhs.gov

Frequently asked questions

What is CVE-2026-42952?: CVE-2026-42952 is a high-severity vulnerability in Hydro-québec Le Circuit Electrique Charging Station Backend, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 7.5/10. Published 2026-07-10.
How severe is CVE-2026-42952?: High severity. CVSS v3 base score is 7.5 out of 10.