Auth bypass in NETGEAR Dgnd3700
CVE-2025-4978
A vulnerability, which was classified as very critical, was found in Netgear DGND3700 1.1.00.15_1.00.15NA. This affects an unknown part of the file /BRS_top.html of the component Basic Authentication. The manipulation leads to improper authentication. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Other products might be affected as well. The vendor was contacted early about this disclosure.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.210 (97.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.210 · newest: 0.210 · change: 0.000
Affected products
- NETGEAR Dgnd3700 — versions 1.1.00.15_1.00.15NA, v2
- NETGEAR Dgnd3700 Firmware — versions 1.1.00.15_1.00.15na
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/at0de/my_vulns/blob/main/Netgear/DGND3700v2/backdoor.md (Exploit, exploit)
- www.netgear.com/ (Product, product)
Frequently asked questions
- What is CVE-2025-4978?
- CVE-2025-4978 is a critical-severity vulnerability in NETGEAR Dgnd3700, classified under Improper Authentication. CVSS score: 9.8/10. Published 2025-05-20.
- How severe is CVE-2025-4978?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-4978 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.