9.8

CVE-2026-20781

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.1% 0.269
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
ics-cert@hq.dhs.gov 9.4 3.9 5.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
CWE-306 Missing Authentication for Critical Function

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-03
Third Party Advisory
US Government Resource