CVE-2026-25114
Published: 27 February 2026
Summary
CVE-2026-25114 is a high-severity Improper Restriction of Excessive Authentication Attempts (CWE-307) vulnerability in Cloudcharge Cloudcharge.Se. Its CVSS base score is 8.7 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Brute Force (T1110); ranked at the 37.4th 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-2026-25114 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. Published on 2026-02-27, it affects components 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).
Unauthenticated remote attackers 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, or brute-force attacks to achieve unauthorized access, with primary impact on availability.
CISA ICS Advisory ICSA-26-057-03, along with its CSAF representation on GitHub and the vendor contact page at https://cloudcharge.tech/support/contact/, provide further details on mitigations. Security practitioners should consult these resources for patch information and recommended actions.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-8935
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?
Lack of rate limiting on authentication requests directly enables brute-force credential access (T1110) and service exhaustion DoS via flooding (T1499.002).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly enforces limits on consecutive unsuccessful authentication attempts, mitigating brute-force attacks enabled by unrestricted authentication requests.
Provides denial-of-service protection mechanisms such as rate limiting to prevent flooding of the WebSocket API with excessive authentication requests that suppress legitimate telemetry.
Limits concurrent sessions to mitigate resource exhaustion from multiple simultaneous WebSocket connections attempting excessive authentication.