Vulnerability · Published Oct 16, 2025 · Assigned by VulnCheck
CVE-2025-34255D-Link Nuclias Connect <= v1.3.1.4 Forgot Password Account Enumeration
Medium 6.9
In plain English
A medium-severity security flaw in Nuclias Connect from D-Link. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| D-Link | Nuclias Connect | 0 – through 1.3.1.4 |
Weakness: CWE-204 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N