Vulnerability in Gnetsystem G-Onx

CVE-2025-30139

An issue was discovered on G-Net Dashcam BB GONX devices. Default credentials for SSID cannot be changed. It broadcasts a fixed SSID with default credentials that cannot be changed. This allows any nearby attacker to connect to the dashcam's network without restriction. Once connected, an attacker can sniff on connected devices such as the user's smartphone. The SSID is also always broadcasted.

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: 0.004 (33.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-30139: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-30139?
CVE-2025-30139 is a critical-severity vulnerability in Gnetsystem G-Onx, classified under CWE-1392. CVSS score: 9.8/10. Published 2025-03-18.
How severe is CVE-2025-30139?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-30139 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.