PT-2026-26686 · Ctek · Chargeportal

Published 2026-03-20 · Updated 2026-03-20 · CVE-2026-25192

NVD

CVSS v3.1

9.4

Critical

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

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.

Fix

Missing Authentication

Weakness Enumeration

CWE-306

Related Identifiers

CVE-2026-25192

Affected Products

Chargeportal

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-25192 · Security Note
• https://ctek.com/support · Note
• https://cisa.gov/news-events/ics-advisories/icsa-26-078-06 · Note
• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-078-06.json · Note