CVE-2025-30139: g-onx (CVSS 9.8)

Description

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.

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CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-1392 CWE-1392

Affected Products

Vendor	Product	Versions
gnetsystem	g-onx_firmware	All
gnetsystem	g-onx	All

References

Other References

https://github.com/geo-chen/GNET https://www.gnetsystem.com/eng/product/list?viewMode=view&idx=246&ca_id=0201

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-30139? +

CVE-2025-30139 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-30139? +

CVE-2025-30139 affects products from gnetsystem, specifically: g-onx, g-onx_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-30139? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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