CVE-2026-26290Network attack vector

Unauthenticated session hijacking via predictable station identifiers

Published Feb 27, 2026 · Updated Feb 27, 2026

Insufficient session expiration in ev.energy allows remote attackers to hijack charging-station sessions through predictable identifiers. The WebSocket backend accepts concurrent endpoints under one station identifier and assigns commands to the newest connection, displacing the legitimate station. No authentication or user interaction is required; the attacker can receive station commands or interrupt service with valid session requests.

CVSS severity6.9
Medium
EPSS probability0.34%
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 ev.energy allows remote attackers to hijack charging-station sessions through predictable identifiers. The WebSocket backend accepts concurrent endpoints under one station identifier and assigns commands to the newest connection, displacing the legitimate station. No authentication or user interaction is required; the attacker can receive station commands or interrupt service with valid session requests.

The record

CVE
CVE-2026-26290
Published
Feb 27, 2026
Updated
Feb 27, 2026
Vendor
ev.energy
Product
ev.energy
Classifications
CWE-613, T1499, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 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?

ev.energy · ev.energyversion=All versions

Published CVSS scores

7.3ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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

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
T1499Endpoint Denial of Service
T1078Valid Accounts

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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