CVE-2025-34254 — D-Link Nuclias Connect <= v1.3.1.4 Login Account Enumeration
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 …
Published: 2025-10-16 · CVSS: 6.9 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7