CVE-2025-4978 Netgear DGND3700 Basic Authentication BRS_top.html improper authentication
Remote attackers can bypass authentication on Netgear DGND3700 routers via the BRS_top.html file, gaining unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-4978?
CVE-2025-4978 is a critical authentication bypass vulnerability in Netgear DGND3700, published on 20 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-287
Which versions are affected by CVE-2025-4978?
It affects 1 product.
Products include Netgear Dgnd3700 Firmware.
How do I fix CVE-2025-4978?
No fix has been published for CVE-2025-4978 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-4978 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4978 exists.
Other vulnerabilities in Netgear DGND3700
Sources
Also known as GHSA-x4gc-7rpm-6497.