CVE-2025-34255: D-Link Nuclias Connect <= v1.3.1.4 Forgot Password Account Enumeration
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 Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-34255?
CVE-2025-34255 is classified as a medium severity vulnerability due to its potential for account enumeration.
How do I fix CVE-2025-34255?
To mitigate CVE-2025-34255, users should upgrade their D-Link Nuclias Connect firmware to the latest version beyond 1.3.1.4.
What type of vulnerability is CVE-2025-34255?
CVE-2025-34255 is categorized as an observable response discrepancy vulnerability affecting the password recovery mechanism.
Who is affected by CVE-2025-34255?
Users of D-Link Nuclias Connect firmware versions 1.3.1.4 and earlier are affected by CVE-2025-34255.
Can CVE-2025-34255 lead to further attacks?
Yes, CVE-2025-34255 can potentially lead to further attacks by allowing malicious actors to verify valid email addresses associated with user accounts.