Summary
Successful exploitation of these vulnerabilities could enable attackers to gain unauthorized administrative control over vulnerable charging stations or disrupt charging services through denial-of-service attacks.
The following versions of Chargemap chargemap.com are affected:
- chargemap.com vers:all/* (CVE-2026-25851, CVE-2026-20792, CVE-2026-25711, CVE-2026-20791)
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 9.4 | Chargemap | Chargemap chargemap.com | Missing Authentication for Critical Function, Improper Restriction of Excessive Authentication Attempts, Insufficient Session Expiration, Insufficiently Protected Credentials |
Background
- Critical Infrastructure Sectors: Energy, Transportation Systems
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: France
Vulnerabilities
CVE-2026-25851
WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersonation and manipulate data sent to the backend. An unauthenticated attacker can connect to the OCPP WebSocket endpoint using a known or discovered charging station identifier, then issue or receive OCPP commands as a legitimate charger. Given that no authentication is required, this can lead to privilege escalation, unauthorized control of charging infrastructure, and corruption of charging network data reported to the backend.
Affected Products
Chargemap chargemap.com
Chargemap
Chargemap chargemap.com: vers:all/*
known_affected
Remediations
Vendor fix
Chargemap did not respond to CISA’s request for coordination. Contact Chargemap using their contact page here: https://chargemap.com/en-us/support for more information.
Relevant CWE: CWE-306 Missing Authentication for Critical Function
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 9.4 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L |
CVE-2026-20792
The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks by suppressing or misrouting legitimate charger telemetry, or conduct brute-force attacks to gain unauthorized access.
Affected Products
Chargemap chargemap.com
Chargemap
Chargemap chargemap.com: vers:all/*
known_affected
Remediations
Vendor fix
Chargemap did not respond to CISA’s request for coordination. Contact Chargemap using their contact page here: https://chargemap.com/en-us/support for more information.
Relevant CWE: CWE-307 Improper Restriction of Excessive Authentication Attempts