CVE-2026-25945
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Authentication Request Rate Limiting Flaw in WebSocket API Enables DoS and Brute-Force

Publication date: 2026-02-27

Last updated on: 2026-03-05

Assigner: ICS-CERT

Description
The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks by suppressing or mis-routing legitimate charger telemetry, or conduct brute-force attacks to gain unauthorized access.
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Meta Information
Published
2026-02-27
Last Modified
2026-03-05
Generated
2026-06-16
AI Q&A
2026-02-27
EPSS Evaluated
2026-06-14
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
ev2go ev2go.io *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-307 The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.
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Executive Summary

This vulnerability exists because the WebSocket Application Programming Interface does not limit the number of authentication requests that can be made.

Without such rate limiting, an attacker can exploit this by sending many authentication requests.

This can lead to denial-of-service attacks by suppressing or mis-routing legitimate charger telemetry data, or allow brute-force attacks to gain unauthorized access.

Impact Analysis

The vulnerability can impact you by enabling attackers to perform denial-of-service attacks, which can disrupt the normal operation of charger telemetry.

Additionally, attackers may use brute-force methods to gain unauthorized access, potentially compromising system security.

The CVSS score indicates a high impact on availability but no direct impact on confidentiality or integrity.

Compliance Impact

I don't know

Detection Guidance

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Mitigation Strategies

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