CVE-2026-27772
CRITICALCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Lifecycle Timeline
2Description
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.
Analysis
Missing WebSocket authentication — fifth CVE in the industrial platform WebSocket family. Same CWE-306 pattern enabling unauthenticated access and station impersonation.
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Remediation
Within 24 hours: Identify all systems exposing WebSocket endpoints and assess current usage in production environments; disable WebSocket functionality if not business-critical. Within 7 days: Implement network segmentation to restrict WebSocket access to trusted networks only and deploy WAF rules to enforce token validation on all WebSocket handshakes. …
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External POC / Exploit Code
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