CVE-2025-6893: CWE-250: Execution with Unnecessary Privileges in Moxa EDR-G9010 Series
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.
AI Analysis
Technical Summary
CVE-2025-6893 identifies a critical security vulnerability in the Moxa EDR-G9010 Series network security appliances and routers, specifically affecting version 1.0. The vulnerability stems from broken access control in the /api/v1/setting/data REST API endpoint, which allows a low-privileged authenticated user to invoke this API without possessing the necessary permissions. This flaw enables unauthorized access to sensitive system configuration data and the ability to modify it, effectively escalating privileges beyond what the user should have. The vulnerability is classified under CWE-250 (Execution with Unnecessary Privileges), indicating that the system executes operations with higher privileges than required. The CVSS 4.0 base score is 9.3 (critical), reflecting a network attack vector (AV:N), low attack complexity (AC:L), no required attack prerequisites (AT:N), low privileges required (PR:L), no user interaction (UI:N), and high impacts on confidentiality (VC:H), integrity (VI:H), and availability (VA:H). However, the description notes no loss of confidentiality or integrity in subsequent systems, implying the impact is localized to the affected device’s configuration and operation. Exploitation could allow attackers to alter device settings, potentially disrupting network security functions, causing denial of service, or creating persistent backdoors. No known exploits are currently reported in the wild, but the critical severity and ease of exploitation make this a high-risk vulnerability. The lack of available patches at the time of publication necessitates immediate mitigation through compensating controls.
Potential Impact
For European organizations, especially those operating critical infrastructure, industrial control systems, or secure network environments, this vulnerability poses a significant risk. Moxa EDR-G9010 devices are often deployed in industrial and network security contexts, where unauthorized configuration changes can lead to service disruptions, degraded security postures, or unauthorized network access. The ability for a low-privileged user to escalate privileges and modify system settings can facilitate further attacks, including persistent compromise or lateral movement within networks. Although confidentiality impact on downstream systems is not indicated, the integrity and availability of the affected devices are at high risk, potentially causing operational outages or security failures. This can have cascading effects on industrial processes, telecommunications, or enterprise network security. The critical CVSS score underscores the urgency for European organizations to assess their exposure and implement mitigations promptly to avoid exploitation that could disrupt services or compromise network defenses.
Mitigation Recommendations
1. Monitor Moxa’s official channels closely for security patches addressing CVE-2025-6893 and apply them immediately upon release. 2. Until patches are available, restrict access to the /api/v1/setting/data endpoint by implementing strict network segmentation and firewall rules to limit API access only to trusted management networks and administrators. 3. Enforce strong authentication and authorization mechanisms for all users accessing device management interfaces, ensuring least privilege principles are applied. 4. Implement continuous monitoring and logging of configuration changes on Moxa devices to detect unauthorized modifications promptly. 5. Conduct regular audits of user privileges and API access permissions to identify and remediate any excessive rights. 6. Employ intrusion detection and prevention systems (IDS/IPS) tuned to detect anomalous API calls or privilege escalation attempts targeting these devices. 7. Educate network administrators about the vulnerability and the importance of safeguarding device management interfaces. 8. Consider deploying compensating controls such as multi-factor authentication (MFA) for device access and isolating management interfaces from general network access. 9. Develop incident response plans specific to industrial network device compromise scenarios to enable rapid containment and recovery.
Affected Countries
Germany, France, Italy, United Kingdom, Netherlands, Belgium, Poland, Spain
CVE-2025-6893: CWE-250: Execution with Unnecessary Privileges in Moxa EDR-G9010 Series
Description
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.
AI-Powered Analysis
Technical Analysis
CVE-2025-6893 identifies a critical security vulnerability in the Moxa EDR-G9010 Series network security appliances and routers, specifically affecting version 1.0. The vulnerability stems from broken access control in the /api/v1/setting/data REST API endpoint, which allows a low-privileged authenticated user to invoke this API without possessing the necessary permissions. This flaw enables unauthorized access to sensitive system configuration data and the ability to modify it, effectively escalating privileges beyond what the user should have. The vulnerability is classified under CWE-250 (Execution with Unnecessary Privileges), indicating that the system executes operations with higher privileges than required. The CVSS 4.0 base score is 9.3 (critical), reflecting a network attack vector (AV:N), low attack complexity (AC:L), no required attack prerequisites (AT:N), low privileges required (PR:L), no user interaction (UI:N), and high impacts on confidentiality (VC:H), integrity (VI:H), and availability (VA:H). However, the description notes no loss of confidentiality or integrity in subsequent systems, implying the impact is localized to the affected device’s configuration and operation. Exploitation could allow attackers to alter device settings, potentially disrupting network security functions, causing denial of service, or creating persistent backdoors. No known exploits are currently reported in the wild, but the critical severity and ease of exploitation make this a high-risk vulnerability. The lack of available patches at the time of publication necessitates immediate mitigation through compensating controls.
Potential Impact
For European organizations, especially those operating critical infrastructure, industrial control systems, or secure network environments, this vulnerability poses a significant risk. Moxa EDR-G9010 devices are often deployed in industrial and network security contexts, where unauthorized configuration changes can lead to service disruptions, degraded security postures, or unauthorized network access. The ability for a low-privileged user to escalate privileges and modify system settings can facilitate further attacks, including persistent compromise or lateral movement within networks. Although confidentiality impact on downstream systems is not indicated, the integrity and availability of the affected devices are at high risk, potentially causing operational outages or security failures. This can have cascading effects on industrial processes, telecommunications, or enterprise network security. The critical CVSS score underscores the urgency for European organizations to assess their exposure and implement mitigations promptly to avoid exploitation that could disrupt services or compromise network defenses.
Mitigation Recommendations
1. Monitor Moxa’s official channels closely for security patches addressing CVE-2025-6893 and apply them immediately upon release. 2. Until patches are available, restrict access to the /api/v1/setting/data endpoint by implementing strict network segmentation and firewall rules to limit API access only to trusted management networks and administrators. 3. Enforce strong authentication and authorization mechanisms for all users accessing device management interfaces, ensuring least privilege principles are applied. 4. Implement continuous monitoring and logging of configuration changes on Moxa devices to detect unauthorized modifications promptly. 5. Conduct regular audits of user privileges and API access permissions to identify and remediate any excessive rights. 6. Employ intrusion detection and prevention systems (IDS/IPS) tuned to detect anomalous API calls or privilege escalation attempts targeting these devices. 7. Educate network administrators about the vulnerability and the importance of safeguarding device management interfaces. 8. Consider deploying compensating controls such as multi-factor authentication (MFA) for device access and isolating management interfaces from general network access. 9. Develop incident response plans specific to industrial network device compromise scenarios to enable rapid containment and recovery.
Affected Countries
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Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Moxa
- Date Reserved
- 2025-06-28T15:51:37.684Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 68f1ba682c5d344c54e5d947
Added to database: 10/17/2025, 3:39:20 AM
Last enriched: 10/17/2025, 3:39:35 AM
Last updated: 10/19/2025, 6:05:12 AM
Views: 41
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