---
id: CVE-2026-22105
title: Use of default password based on serial number
summary: >-
  Delta UFC500 charging stations derive the default credentials of the Service
  account from character positions of the device serial number. An
  unauthenticated attacker with adjacent network access can reconstruct the
  resulting password, o…
severity: high
cvss: 8.7
cvssVector: 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-1392
vendor: Delta Electronics
product: msi-image
affected:
  - msi-image < 2.4.18
  - ECP < 4.4.1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-30T16:34:48.538711Z'
published: '2026-10-30'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T16:35:01.858Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-22105'
references:
  - url: 'https://csirt.divd.nl/DIVD-2026-00012'
  - url: 'https://csirt.divd.nl/CVE-2026-22105'
tags:
  - cve.org
epss: 0.00191
epssPercentile: 0.08832
ingestedAt: '2026-11-05T16:24:31.078Z'
---

## Overview

Delta UFC500 charging stations derive the default credentials of the Service account from character positions of the device serial number. An unauthenticated attacker with adjacent network access can reconstruct the resulting password, or exhaust the keyspace, and log in to read and change sensitive settings such as the OCPP backend.

## Affected

- `msi-image < 2.4.18`
- `ECP < 4.4.1`

## Remediation

Set a non-default password for the Service account.

### Workarounds

Set a non-default password for the Service account.