CVE-2025-14703 Shiguangwu sgwbox N3 POST Message fsnotify improper authentication

Medium 6.9 Published 15 Dec 2025 Updated 15 Dec 2025

Remote attackers can bypass authentication in the POST Message Handler of Shiguangwu sgwbox N3 devices by manipulating the token argument.

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-2025-14703?

CVE-2025-14703 is a medium-severity authentication bypass vulnerability in Shiguangwu sgwbox N3, published on 15 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability has been found in Shiguangwu sgwbox N3 2.0.25. The affected element is an unknown function of the file /fsnotify of the component POST Message Handler. The manipulation of the argument token leads to improper authentication. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-287

Which versions are affected by CVE-2025-14703?

It affects 1 product.

Products include Sgwbox N3 Firmware.

How do I fix CVE-2025-14703?

No fix has been published for CVE-2025-14703 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-2025-14703 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14703 exists.

Sources

Also known as GHSA-r3r3-89fv-rw6f.