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Back to active CVEs
High · CVSS 8.7CVE-2026-22105

Use of default password based on serial numberCVE-2026-22105

Answer in brief

CVE-2026-22105 records a High severity (CVSS 8.7) vulnerability in Use of default password based on serial number. The current sources do not mark it as known exploited. The current feed maps Delta Electronics/Delta UFC500 (generic), Delta Electronics/Delta UFC500 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 30, 2026Updated Oct 30, 2026Source checked Oct 30, 2026First seen by HOL Oct 30, 2026Material review Oct 30, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.7
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Delta Electronics/Delta UFC500 (generic), Delta Electronics/Delta UFC500 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Delta Electronics/Delta UFC500generic>=0 <2.4.182.4.18
Delta Electronics/Delta UFC500generic>=0 <4.4.14.4.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Delta Electronics/Delta UFC500, Delta Electronics/Delta UFC500.
  2. 2Review the reported fix. Source-reported solution: Set a non-default password for the Service account.

Evidence timeline and material changes

  1. Published upstream

    Oct 30, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 30, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 30, 2026

Sources and claim methodology

  • Source referencecsirt.divd.nl
  • Source referencecsirt.divd.nl
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Default WebUI passwords stored in plaintextSame delta electronics/delta ufc500 package
  • Missing authentication check on POST/PUT requestsSame delta electronics/delta ufc500 package
  • Missing brute-force protection for web interfaceSame delta electronics/delta ufc500 package

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-1392
Source
CVE List V5
Source checked
Oct 30, 2026
References
2 linked sources
Open source record