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CVE-2026-40702

9.4 · CRITICAL

WebSocket endpoints lack proper authentication mechanisms, enabling attackers to impersonate charging stations.

Published Jun 25, 2026CWE-306EPSS 0.65%

Overview

CVE-2026-40702 is a critical-severity vulnerability. It was published on June 25, 2026 and has a CVSS 3.1 base score of 9.4 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.4, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refevokesystems.com/contact-us/GitHubgithub.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-176-02.jsonCISAwww.cisa.gov/news-events/ics-advisories/icsa-26-176-02

How CyberStrike helps

Frequently asked questions

What is CVE-2026-40702?

CVE-2026-40702 is a critical-severity vulnerability. It was published on June 25, 2026 and has a CVSS 3.1 base score of 9.4 (CRITICAL).

How severe is CVE-2026-40702?

This vulnerability has a CVSS 3.1 base score of 9.4, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-40702?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-40702?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-40702 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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