CVE-2026-25192

CTEK Chargeportal Missing Authentication for Critical Function

Assigner: icscert
Reserved: 12.03.2026 Published: 20.03.2026 Updated: 20.03.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
CVSS Score: 9.4

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	Low

CVSS 3.1

CVSS Vector: 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
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	CTEK
Product	Chargeportal
Versions	Default: unaffected Version All versions is affected

Vendor

CTEK

Product

Chargeportal

Versions

Default: unaffected

Version All versions is affected

Workarounds

CTEK will be sunsetting this product in April 2026. Please contact CTEK for more information https://www.ctek.com/support .

Credits

Khaled Sarieddine and Mohammad Ali Sayed reported this vulnerability to CISA. finder

References

Problem Types

CWE-306 CWE