CVE-2025-4978: Netgear DGND3700 Basic Authentication BRS_top.html improper authentication

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 21.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-05-20 · updated 2026-06-17
Weakness: CWE-287

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.

Affected products

Netgear DGND3700: 1.1.00.15_1.00.15na

References

https://github.com/at0de/my_vulns/blob/main/Netgear/DGND3700v2/backdoor.md
https://vuldb.com/?ctiid.309639
https://vuldb.com/?id.309639
https://vuldb.com/?submit.564712
https://www.netgear.com/
https://github.com/at0de/my_vulns/blob/main/Netgear/DGND3700v2/backdoor.md

Get alerted when CVE-2025-4978 or the next vulnerability affects your stack