CVE-2025-34254

UNKNOWN 0.0

D-Link Nuclias Connect <= v1.3.1.4 Login Account Enumeration

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-204
Vendor	d-link
Product	nuclias connect
Published	Oct 16, 2025
Last Updated	Mar 23, 2026

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Affected Versions

D-Link / Nuclias Connect

* < 1.3.1.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vulncheck.com: https://www.vulncheck.com/advisories/dlink-nuclias-connect-login-account-enumeration dlink.com: https://www.dlink.com/en/for-business/nuclias/nuclias-connect supportannouncement.us.dlink.com: https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10472

Credits

Alex Williams from Pellera Technologies