CVE-2026-40702

CRITICAL 9.4

EVoke Systems EVoke CSMS Missing Authentication for Critical Function

CVSS Score

9.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-306
Vendor	evoke
Product	evoke csms
Published	Jun 25, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

Low

Affected Versions

EVoke / EVoke CSMS

All versions

References

NVD ↗ CVE.org ↗ EPSS Data ↗

evokesystems.com: https://evokesystems.com/contact-us/ cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-176-02 github.com: https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-176-02.json

Credits

Khaled Sarieddine and Mohammad Ali Sayed reported this vulnerability to CISA.