CVE-2025-34255 - CVE House
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Status published Medium CVE-2025-34255

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

Vulnerability Description

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

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Alex Williams from Pellera Technologies

References

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Affected Vendor

Affected Software

Nuclias Connect
Vulnerable Versions:
0

Timeline

Official Publish: October 16th, 2025
Last Modified: May 25th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-204

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.