CVE-2025-34255D-Link Nuclias Connect firmware versions <= 1.3.1.4 contain an observable response discrepancy vulnerability.
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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.
- CVSS
- 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-204
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Oct 9, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
dlink nuclias_connect dlink:nuclias_connect | through 1.3.1.4 | NVD |
References
- https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10472vendor-advisory
- https://www.dlink.com/en/for-business/nuclias/nuclias-connectproduct
- https://www.vulncheck.com/advisories/dlink-nuclias-connect-forgot-password-account-enumerationthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.