Description

D-Link Nuclias Connect firmware versions <= 1.3.1.4 contain an observable response discrepancy vulnerability. The application's 'Login' endpoint returns distinct JSON responses depending on whether the supplied username is associated with an existing account. Because the responses differ in the `error.message`string value, an unauthenticated remote attacker can enumerate valid usernames/accounts on the server. NOTE: D-Link states that a fix is under development.

INFO

Published Date :

2025-10-16T18:52:08.435Z

Last Modified :

2026-03-23T15:43:48.640Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2025-34254 vulnerability.

Vendors Products
D-link
  • Nuclias Connect
Dlink
  • Nuclias Connect
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-34254.

URL Resource
https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10472 cve-icon cve-icon
https://www.dlink.com/en/for-business/nuclias/nuclias-connect cve-icon cve-icon
https://www.vulncheck.com/advisories/dlink-nuclias-connect-login-account-enumeration cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Privileges Required
User Interaction
VS Confidentiality
VS Integrity
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SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact