CVE-2026-40702

Published Jun 25, 2026

Last updated a month ago

CVSS critical 9.3
ICS
OT

Overview

Description
WebSocket endpoints lack proper authentication mechanisms, enabling attackers to impersonate charging stations. As a result, attackers can exploit this weakness to gain unauthorized access to sensitive data or perform unauthorized actions. Given that no authentication is required, this can lead to privilege escalation and potentially compromise the security of the entire system.
Source
ics-cert@hq.dhs.gov
NVD status
Deferred

Risk scores

CVSS 4.0

Type
Secondary
Base score
9.3
Impact score
-
Exploitability score
-
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity
CRITICAL

CVSS 3.1

Type
Secondary
Base score
9.4
Impact score
5.5
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Severity
CRITICAL

Weaknesses

ics-cert@hq.dhs.gov
CWE-306

Social media

Hype score
Not currently trending

  1. 🚨*CVE* CVE-2026-40702 WebSocket endpoints lack proper authentication mechanisms, enabling attackers to impersonate charging stations. As a result, attackers can exploit this weakness to ga… https://t.co/yUVLlbHZfm ----- Traducción: CVE-2026-40702 Los… https://t.co/utmtNg

    @infoflowcloud

    25 Jun 2026

    32 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

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References

Sources include official advisories and independent security research.