CVE-2026-25192Network attack vector

Unauthenticated charger impersonation via OCPP WebSocket

Published Mar 20, 2026 · Updated Mar 20, 2026

Authentication bypass in all versions of CTEK Charge Portal allows remote attackers to impersonate charging stations through the OCPP WebSocket endpoint. The endpoint accepts a known or discovered station identifier without authenticating the connecting charger, then exchanges OCPP commands as that station. No credentials or user interaction are required, exposing charging controls and backend-reported charging network data to unauthorized manipulation.

CVSS severity9.3
Critical
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in all versions of CTEK Charge Portal allows remote attackers to impersonate charging stations through the OCPP WebSocket endpoint. The endpoint accepts a known or discovered station identifier without authenticating the connecting charger, then exchanges OCPP commands as that station. No credentials or user interaction are required, exposing charging controls and backend-reported charging network data to unauthorized manipulation.

The record

CVE
CVE-2026-25192
Published
Mar 20, 2026
Updated
Mar 20, 2026
Vendor
CTEK
Product
Charge Portal
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CTEK · Charge Portalversion=All versions

Published CVSS scores

9.4ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
9.3ICS-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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