Moxa OnCell G4302-LTE4 /api/v1/setting/data unnecessary privileges

Summaryinfo

A vulnerability identified as very critical has been detected in Moxa EDR-G9010, EDR-8010, EDF-G1002-BP, TN-4900, NAT-102, NAT-108 and OnCell G4302-LTE4. This affects an unknown function of the file /api/v1/setting/data. This manipulation causes unnecessary privileges. This vulnerability is tracked as CVE-2025-6893. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical was found in Moxa EDR-G9010, EDR-8010, EDF-G1002-BP, TN-4900, NAT-102, NAT-108 and OnCell G4302-LTE4. Affected by this vulnerability is some unknown functionality of the file /api/v1/setting/data. The manipulation with an unknown input leads to a unnecessary privileges vulnerability. The CWE definition for the vulnerability is CWE-250. The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An Execution with Unnecessary Privileges vulnerability has been identified in Moxa’s network security appliances and routers. A flaw in broken access control has been identified in the /api/v1/setting/data endpoint of the affected device. This flaw allows a low-privileged authenticated user to call the API without the required permissions, thereby gaining the ability to access or modify system configuration data. Successful exploitation may lead to privilege escalation, allowing the attacker to access or modify sensitive system settings. While the overall impact is high, there is no loss of confidentiality or integrity within any subsequent systems.

The advisory is shared at moxa.com. This vulnerability is known as CVE-2025-6893 since 06/28/2025. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/17/2025). MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading eliminates this vulnerability.

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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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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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