VULNERABILITY INTELLIGENCE

CVE-2025-34254

CVSS score5.3 MEDIUM
EPSS probability1.02%
CISA KEVNot currently listed
Published2025-10-16
Last modified2026-10-09
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Description

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-204

Primary references