CVE-2026-54479Network attack vector

Unauthenticated charger impersonation via duplicate session identifiers

Published Jun 25, 2026 · Updated Jun 25, 2026

Insufficient session expiration in EVoke CSMS allows remote attackers to impersonate charging stations or interrupt service. The WebSocket backend accepts multiple connections under the same predictable charger identifier instead of enforcing one unique active session. No credentials or user interaction are required; a duplicate connection can receive station-directed commands or overwhelm the backend with valid session requests.

CVSS severity6.9
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient session expiration in EVoke CSMS allows remote attackers to impersonate charging stations or interrupt service. The WebSocket backend accepts multiple connections under the same predictable charger identifier instead of enforcing one unique active session. No credentials or user interaction are required; a duplicate connection can receive station-directed commands or overwhelm the backend with valid session requests.

The record

CVE
CVE-2026-54479
Published
Jun 25, 2026
Updated
Jun 25, 2026
Vendor
EVoke Systems
Product
EVoke CSMS
Classifications
CWE-613, T1036
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

EVoke Systems · EVoke CSMSversion=All versions

Published CVSS scores

6.9ICS-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
7.3ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1036Masquerading

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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