Moxa OnCell G4302-LTE4 hard-coded credentials

Summaryinfo

A vulnerability categorized as critical has been discovered in Moxa EDR-G9010, EDR-8010, EDF-G1002-BP, TN-4900, NAT-102, NAT-108 and OnCell G4302-LTE4. The impacted element is an unknown function. The manipulation results in hard-coded credentials. This vulnerability is identified as CVE-2025-6950. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical has been found in Moxa EDR-G9010, EDR-8010, EDF-G1002-BP, TN-4900, NAT-102, NAT-108 and OnCell G4302-LTE4. Affected is an unknown functionality. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. CWE is classifying the issue as CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An Use of Hard-coded Credentials vulnerability has been identified in Moxa’s network security appliances and routers. The system employs a hard-coded secret key to sign JSON Web Tokens (JWT) used for authentication. This insecure implementation allows an unauthenticated attacker to forge valid tokens, thereby bypassing authentication controls and impersonating any user. Exploitation of this vulnerability can result in complete system compromise, enabling unauthorized access, data theft, and full administrative control over the affected device. While successful exploitation can severely impact the confidentiality, integrity, and availability of the affected device itself, there is no loss of confidentiality or integrity within any subsequent systems.

The advisory is shared for download at moxa.com. This vulnerability is traded as CVE-2025-6950 since 07/01/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/17/2025). The MITRE ATT&CK project declares the attack technique as T1110.001.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-34856). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Automation Software

Vendor

• Moxa

Name

• EDF-G1002-BP
• EDR-8010
• EDR-G9010
• NAT-102
• NAT-108
• OnCell G4302-LTE4
• TN-4900

License

• commercial

Website

• Vendor: https://www.moxa.com/

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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