CVE-2025-34255
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-16

Last updated on: 2025-10-30

Assigner: VulnCheck

Description
D-Link Nuclias Connect firmware versions <= 1.3.1.4 contain an observable response discrepancy vulnerability.Β 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.Β NOTE: D-Link states that a fix is under development.
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Meta Information
Published
2025-10-16
Last Modified
2025-10-30
Generated
2026-05-07
AI Q&A
2025-10-16
EPSS Evaluated
2026-05-05
NVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
dlink nuclias_connect to 1.3.1.4 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-204 The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in D-Link Nuclias Connect firmware versions up to 1.3.1.4. The 'Forgot Password' endpoint returns different JSON responses depending on whether the provided email address is associated with an existing account. Specifically, the 'data.exist' boolean value differs, allowing an unauthenticated remote attacker to determine which email addresses/accounts are valid on the server.


How can this vulnerability impact me? :

The vulnerability allows an unauthenticated attacker to enumerate valid email addresses or accounts on the server. This can lead to privacy breaches, targeted phishing attacks, or further exploitation attempts against known accounts.


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