CVE-2026-26051
Unauthorized Access via Unauthenticated OCPP WebSocket Endpoint
Publication date: 2026-03-06
Last updated on: 2026-05-05
Assigner: ICS-CERT
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mvm | mobiliti_e-mobi.hu | * |
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 involves WebSocket endpoints used by Mobiliti charging stations that lack proper authentication mechanisms.
An attacker who is not authenticated can connect to the Open Charge Point Protocol (OCPP) WebSocket endpoint by using a known or discovered charging station identifier.
Once connected, the attacker can issue or receive OCPP commands as if they were a legitimate charging station, enabling unauthorized station impersonation.
This can lead to privilege escalation, unauthorized control of the charging infrastructure, and corruption of the charging network data reported to the backend.
How can this vulnerability impact me? :
The vulnerability can have serious impacts including unauthorized administrative control over charging stations.
An attacker can manipulate the charging infrastructure, potentially causing disruption or misuse of the charging network.
It can also lead to corruption of charging network data reported to the backend, affecting data integrity.
Because no authentication is required, attackers can escalate privileges and control the system remotely without user interaction.
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?
To mitigate this vulnerability, it is recommended to minimize network exposure of control system devices and isolate control system networks behind firewalls.
Use secure remote access methods such as VPNs, while being aware of potential VPN vulnerabilities.
Perform proper impact analysis and risk assessment before deploying any mitigations.
Refer to additional guidance and best practices for industrial control systems cybersecurity available on the CISA ICS webpage.