CVE-2026-40702
Received Received - Intake
WebSocket Authentication Bypass in EV Charging Stations

Publication date: 2026-06-25

Last updated on: 2026-06-25

Assigner: ICS-CERT

Description
WebSocket endpoints lack proper authentication mechanisms, enabling attackers to impersonate charging stations. As a result, attackers can exploit this weakness to gain unauthorized access to sensitive data or perform unauthorized actions. Given that no authentication is required, this can lead to privilege escalation and potentially compromise the security of the entire system.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-06-25
Last Modified
2026-06-25
Generated
2026-06-26
AI Q&A
2026-06-26
EPSS Evaluated
N/A
NVD
EUVD
Affected Vendors & Products
Currently, no data is known.
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
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 Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability involves WebSocket endpoints that lack proper authentication mechanisms. Because no authentication is required, attackers can impersonate charging stations.

This allows attackers to gain unauthorized access to sensitive data or perform unauthorized actions within the system.

Compliance Impact

This vulnerability allows attackers to impersonate charging stations due to lack of proper authentication on WebSocket endpoints, leading to unauthorized access to sensitive data and unauthorized actions.

Such unauthorized access and potential compromise of sensitive data can negatively impact compliance with common standards and regulations like GDPR and HIPAA, which require protection of sensitive information and proper access controls.

Failure to implement authentication mechanisms and prevent privilege escalation may result in violations of these regulations, exposing organizations to legal and financial penalties.

Impact Analysis

The vulnerability can lead to privilege escalation and potentially compromise the security of the entire system.

Attackers exploiting this weakness can access sensitive data or carry out unauthorized actions, which may disrupt operations or cause data breaches.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-40702. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart