CVE-2026-25945

High

Published: 27 February 2026

Published

27 February 2026

Modified

05 March 2026

KEV Added

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Patch

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CVSS Score 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score 0.0010 28.0th percentile

Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-25945 is a high-severity Improper Restriction of Excessive Authentication Attempts (CWE-307) vulnerability in Ev2Go Ev2Go.Io. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 28.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 AC-7 (Unsuccessful Logon Attempts) and SC-5 (Denial-of-service Protection).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 2 other techniques. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SC-5 Denial-of-service Protection good match

prevent

SC-5 directly mandates protection against denial-of-service attacks, including rate limiting on authentication requests to prevent flooding and suppression of legitimate charger telemetry.

AC-7 Unsuccessful Logon Attempts good match

prevent

AC-7 enforces limits on consecutive unsuccessful authentication attempts, directly mitigating brute-force attacks and reducing DoS impact from excessive invalid requests.

SC-6 Resource Availability partial match

prevent

SC-6 limits system resource usage such as CPU, memory, and bandwidth, addressing resource exhaustion from floods of authentication requests over WebSocket.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1110 Brute Force Credential Access

Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.

attack.mitre.org →

T1499 Endpoint Denial of Service Impact

Adversaries may perform Endpoint Denial of Service (DoS) attacks to degrade or block the availability of services to users.

attack.mitre.org →

Why these techniques?

Public-facing WebSocket API vuln enables exploitation (T1190); lack of auth rate limiting directly facilitates brute force (T1110) and application-layer DoS via request flooding (T1499).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD 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.

Deeper analysisAI

CVE-2026-25945 is a vulnerability in the WebSocket Application Programming Interface that lacks restrictions on the number of authentication requests due to the absence of rate limiting. This issue, published on 2026-02-27, is associated with systems handling charger telemetry and carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), mapped to CWE-307 (Improper Restriction of Excessive Authentication Attempts).

A remote, unauthenticated attacker can exploit this vulnerability over the network with low complexity and no user interaction required. Successful exploitation enables denial-of-service attacks by suppressing or mis-routing legitimate charger telemetry traffic, or facilitates brute-force attacks to achieve unauthorized access to the system.

CISA has issued Industrial Control Systems Advisory ICSA-26-057-04 addressing this vulnerability, with details available at https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-04 and in CSAF format at https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-04.json; additional vendor information is at https://ev2go.io/.