# CVE-2025-30142: Auth bypass in n/a

> Attackers can bypass device pairing by spoofing MAC addresses, gaining unauthorized access to G-Net Dashcam BB GONX devices.

- **Severity:** High 8.1 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Mar 2025
- **Updated:** 25 Mar 2025
- **Also known as:** GHSA-m4rv-8xc3-h37q

## What is CVE-2025-30142?

CVE-2025-30142 is a high-severity authentication bypass vulnerability in n/a, published on 18 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An issue was discovered on G-Net Dashcam BB GONX devices. Bypassing of Device Pairing can occur. It uses MAC address verification as the sole mechanism for recognizing paired devices, allowing attackers to bypass authentication. By capturing the MAC address of an already-paired device through ARP scanning or other means, an attacker can spoof the MAC address and connect to the dashcam without going through the pairing process. This enables full access to the device.

Weakness: CWE-290 (Authentication Bypass by Spoofing)

## Which versions are affected by CVE-2025-30142?

It affects 1 product.


Products: Gnetsystem G-Onx Firmware.

## How do I fix CVE-2025-30142?

No fix has been published for CVE-2025-30142 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-30142 being exploited?

There is no known exploitation of CVE-2025-30142 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2025-30139](https://insights.sbomify.com/CVE-2025-30139/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2025-30140](https://insights.sbomify.com/CVE-2025-30140/): Misconfiguration in n/a (high 7.5)
- [CVE-2025-30141](https://insights.sbomify.com/CVE-2025-30141/): Missing authorization in n/a (high 7.5)
- [CVE-2025-30138](https://insights.sbomify.com/CVE-2025-30138/): Missing authorization in n/a (medium 4.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-30142 and fix it if it is affected.

What it is: CVE-2025-30142 is a high-severity authentication bypass vulnerability in n/a, published on 18 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-30142 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-30142/ (Markdown: https://insights.sbomify.com/CVE-2025-30142/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-30142
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-30142
- OSV: https://osv.dev/vulnerability/CVE-2025-30142

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-30142/
Summaries are generated and may contain mistakes; the official description above is the record.