Critical severity · published Feb 26, 2026
CVE-2026-25945
EV2GO ev2go.io Improper Restriction of Excessive Authentication Attempts
9.8
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EV
ev2go.io · EV2GO
All versions · source: vendor, NVD
In the news
AdvisoryCritical
EV2GO ev2go.io
View CSAF
Summary
Successful exploitation of these vulnerabilities could allow attackers to impersonate charging stations, hijack sessions, suppress or misroute legitimate traffic to cause large-scale denial of service, and manipulate data sent to the backend.
The following versions of EV2GO ev2go.io are affected:
ev2go.io vers:all/* (CVE-2026-24731, CVE-2026-25945, CVE-2026-20895, CVE-2026-22890)
CVSS
Vendor
Equipment
Vulnerabilities
v3 9.4
EV2GO
EV2GO ev2go.io
Missing Authentication for Critical Function, Improper Restriction of Excessive Authentication Attempts, Insufficient Session Expiration, Insufficiently Protected Credentials
Background
Critical Infrastructure Sectors: Energy, Transportation Systems
Countries/Areas Deployed: Worldwide
Company Headquarters Location: United Kingdom
Vulnerabilities
Expand All +
CVE-2026-24731
WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersonation and manipulate data sent to the backend. An unauthenticated attacker can connect to the OCPP WebSocket endpoint using a known or discovered charging station identifier, then issue or receive OCPP commands as a legitimate charger. Given that no authentication is required, this can lead to privilege escalation, unauthorized control of charging infrastructure, and corruption of charging network data reported to the backend.
View CVE De...
Feb 26, 2026·CISA Advisories
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-25945
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-25945
Product
https://ev2go.io/
Third Party Advisory
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-04.json
Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-04
More from ev2go.io
9.8
CVE-2026-24731
EV2GO ev2go.io Missing Authentication for Critical Function
7.5
CVE-2026-20895
EV2GO ev2go.io Insufficient Session Expiration
5.3
CVE-2026-22890
EV2GO ev2go.io Insufficiently Protected Credentials
