CVE-2026-24696
Analyzed Analyzed - Analysis Complete
Authentication Request Rate Limiting Flaw in WebSocket API Enables DoS, Brute-Force

Publication date: 2026-03-06

Last updated on: 2026-05-06

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
2026-03-06
Last Modified
2026-05-06
Generated
2026-06-16
AI Q&A
2026-03-06
EPSS Evaluated
2026-06-15
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
everon api.everon.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

CVE-2026-24696 is a vulnerability in the WebSocket Application Programming Interface (API) of a charging station platform identified as CSAFPID-0001.

The vulnerability arises because the WebSocket API does not limit the number of authentication requests an attacker can make.

This lack of rate limiting allows attackers to perform denial-of-service (DoS) attacks by suppressing or misrouting legitimate charger telemetry data.

Additionally, attackers can conduct brute-force attacks to gain unauthorized access to the system.

Impact Analysis

This vulnerability can impact you by enabling attackers to disrupt the availability of the charging station platform through denial-of-service attacks.

Such attacks can suppress or misroute legitimate telemetry data, potentially causing operational failures or loss of service.

Moreover, the vulnerability allows brute-force attacks that could lead to unauthorized access, compromising system security.

Compliance Impact

I don't know

Detection Guidance

This vulnerability involves the WebSocket API lacking rate limiting on authentication requests, which may be detected by monitoring for excessive or abnormal authentication attempts over the network.

Detection can involve analyzing network traffic for unusually high volumes of authentication requests to the WebSocket API endpoints, which may indicate brute-force or denial-of-service attempts.

Specific commands are not provided in the available resources.

Mitigation Strategies

Immediate mitigation steps include minimizing network exposure of control system devices and isolating control system networks behind firewalls.

Use secure remote access methods such as updated VPNs to reduce the risk of unauthorized access.

Perform proper impact analysis and risk assessments before deploying any defensive measures.

Follow established procedures for reporting suspected malicious activity to CISA.

Note that the affected platform by Everon was shut down on December 1st, 2025, which is a key mitigation step.

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