CVE-2026-25192
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Unauthorized Access via Unauthenticated OCPP WebSocket Endpoint

Publication date: 2026-03-20

Last updated on: 2026-05-06

Assigner: ICS-CERT

Description
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.

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Meta Information

Published
2026-03-20
Last Modified
2026-05-06
Generated
2026-07-06
AI Q&A
2026-03-21
EPSS Evaluated
2026-07-05
NVD
CVE-2026-25192
EUVD
EUVD-2026-13846

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
ctek charge_portal *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-306 The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

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Executive Summary

This vulnerability occurs because WebSocket endpoints lack proper authentication mechanisms. This allows attackers to impersonate charging stations without authorization by connecting to the OCPP WebSocket endpoint using a known or discovered charging station identifier.

Once connected, the attacker can issue or receive OCPP commands as if they were a legitimate charger, leading to unauthorized control and manipulation of data sent to the backend.

Impact Analysis

The vulnerability can lead to privilege escalation and unauthorized control of the charging infrastructure.

Attackers can corrupt charging network data reported to the backend, potentially disrupting operations and causing inaccurate data reporting.

Compliance Impact

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