What is the CVSS score of CVE-2025-30139?

CVE-2025-30139 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of G Onx Firmware are affected by CVE-2025-30139?

CVE-2025-30139 presents critical security risk rated CVSS 9.8. Successful exploitation could critically impact the confidentiality, integrity, and availability of affected systems.

How to fix or mitigate CVE-2025-30139?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

G Onx Firmware CVE-2025-30139

CRITICAL

Use of Default Credentials (CWE-1392)

2025-03-18 cve@mitre.org

Information Disclosure G Onx Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:32 vuln.today

CVE Published

Mar 18, 2025 - 20:15 nvd

CRITICAL 9.8

DescriptionCVE.org

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.

AnalysisAI

An issue was discovered on G-Net Dashcam BB GONX devices. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Use of Default Credentials (CWE-1392), which allows attackers to gain access using factory-default usernames and passwords. 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. Affected products include: Gnetsystem G-Onx Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Force credential change on first use, remove default accounts, document required credential changes.