CVE-2026-42952
Hydro-Québec Le Circuit Electrique charging station backend Improper Restriction of Excessive Authentication Attempts
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Hydro-Québec Le Circuit Electrique charging station backend Improper Restriction of Excessive Authentication Attempts
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.
- Record
CVE-2026-42952- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-307
- Updated
- 2026-11-02
EUVDEUVD-2026-43095
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.
- Record
EUVD-2026-43095- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-88vc-rc72-29f3
Previously, there was no throttling on repeated authentication attempts to the charging station...
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.
- Record
GHSA-88vc-rc72-29f3- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-307
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-42952- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-307
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-42952 is a high vulnerability (CVSS 8.7) in Hydro-québec Le Circuit Electrique Charging Station Backend, published July 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.54%, the 45th percentile. No source names a fixed version.