CVE-2026-27772CWE-306

EV Energy ev.energy Missing Authentication for Critical Function

Critical · published February 27, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
62.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
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
EPSS
0.00984 · 62.0th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-02-27T00:09Z
EPSS history
Timeline
  • 27 FEB 00:09Z
    EV Energy ev.energy Missing Authentication for Critical Function
    cvelistv5