CVE-2026-25945
Published: 27 February 2026
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 8.7 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 40.1th 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).
Deeper analysis
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/.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-8938
Vulnerability details
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…
more
access.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
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).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
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 enforces limits on consecutive unsuccessful authentication attempts, directly mitigating brute-force attacks and reducing DoS impact from excessive invalid requests.
SC-6 limits system resource usage such as CPU, memory, and bandwidth, addressing resource exhaustion from floods of authentication requests over WebSocket.