CVE-2026-27028
Unauthenticated WebSocket Access Enables OCPP Station Impersonation
Publication date: 2026-02-27
Last updated on: 2026-03-05
Assigner: ICS-CERT
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mobility46 | mobility46.se | * |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability occurs because WebSocket endpoints used by charging stations lack proper authentication mechanisms. This allows attackers to connect to the OCPP WebSocket endpoint without needing to authenticate themselves.
An attacker can impersonate a legitimate charging station by using a known or discovered charging station identifier. Once connected, the attacker can issue or receive OCPP commands as if they were the legitimate charger.
How can this vulnerability impact me? :
The vulnerability can lead to unauthorized control over charging infrastructure, allowing attackers to escalate privileges and manipulate the charging network.
Attackers can corrupt data reported to the backend, potentially causing operational disruptions or incorrect billing information.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know