Vulnerability details
CVE-2026-25192
CTEK Chargeportal
CTEK Chargeportal Missing Authentication for Critical Function
CVSS 4.0
9.3Critical
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (icscert) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N |
| 9.4Critical | 3.1 | CVEProject cvelistV5 (CNA) (icscert) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| CTEK | Chargeportal | All versions | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2026-03-21
- Last updated
- 2026-03-23
- State
- Published
- Assigner (CNA)
- icscert
Exploit prediction (EPSS)
0.5%
Probability of exploitation in 30 days
43.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-306