CVE-2025-6892: CWE-863: Incorrect Authorization in Moxa EDR-G9010 Series
An Incorrect Authorization vulnerability has been identified in Moxa’s network security appliances and routers. A flaw in the API authentication mechanism allows unauthorized access to protected API endpoints, including those intended for administrative functions. This vulnerability can be exploited after a legitimate user has logged in, as the system fails to properly validate session context or privilege boundaries. An attacker may leverage this flaw to perform unauthorized privileged operations. 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.
AI Analysis
Technical Summary
CVE-2025-6892 is an Incorrect Authorization vulnerability (CWE-863) identified in Moxa’s EDR-G9010 Series network security appliances and routers, specifically version 1.0. The vulnerability stems from a flaw in the API authentication mechanism where the system fails to properly validate the session context and privilege boundaries after a legitimate user logs in. This means that once a user has authenticated, an attacker can exploit the improper authorization checks to access protected API endpoints that are intended only for administrative or privileged functions. The flaw allows unauthorized privileged operations on the device itself, potentially compromising its confidentiality, integrity, and availability. However, the vulnerability does not allow direct compromise of subsequent connected systems beyond the device. The CVSS 4.0 base score is 8.7 (high severity), reflecting network attack vector, low attack complexity, partial authentication required, user interaction needed, and high impact on confidentiality, integrity, and availability of the device. No patches or exploits are currently publicly available, but the vulnerability is published and reserved since mid-2025. The issue highlights a critical failure in session and privilege management within the API layer of these devices, which are commonly deployed in industrial and network security environments.
Potential Impact
For European organizations, especially those in critical infrastructure, manufacturing, energy, and telecommunications sectors, this vulnerability poses a significant risk. The EDR-G9010 Series devices are often deployed as security gateways or routers in industrial control systems and enterprise networks. Successful exploitation could allow attackers to gain unauthorized administrative control over these devices, leading to potential disruption of network traffic, manipulation or disabling of security functions, and denial of service conditions. The compromise of device integrity and availability could result in operational downtime, safety hazards, and loss of trust in network security. Although the vulnerability does not directly affect downstream systems’ confidentiality or integrity, the device’s critical role means its compromise could indirectly facilitate further attacks or network segmentation failures. European organizations with stringent regulatory requirements for network security and operational continuity could face compliance and reputational consequences if exploited.
Mitigation Recommendations
1. Implement strict session management and enforce robust validation of session context and privilege boundaries within the API layer. 2. Deploy network segmentation to isolate Moxa EDR-G9010 devices from less trusted network zones, limiting exposure. 3. Monitor API usage logs for anomalous or unauthorized access patterns, especially post-authentication. 4. Restrict user interaction paths that can trigger privileged API calls, applying the principle of least privilege. 5. Coordinate with Moxa for timely firmware updates or patches addressing this vulnerability once available. 6. Employ multi-factor authentication for all users accessing the device to reduce risk of unauthorized login. 7. Conduct regular security audits and penetration testing focusing on API authorization controls. 8. If possible, temporarily disable or restrict access to vulnerable API endpoints until a patch is applied. 9. Educate administrators and users about the risk of session hijacking or misuse following legitimate login. 10. Integrate device monitoring into centralized security information and event management (SIEM) systems for real-time alerting.
Affected Countries
Germany, France, United Kingdom, Italy, Netherlands, Belgium, Poland, Sweden
CVE-2025-6892: CWE-863: Incorrect Authorization in Moxa EDR-G9010 Series
Description
An Incorrect Authorization vulnerability has been identified in Moxa’s network security appliances and routers. A flaw in the API authentication mechanism allows unauthorized access to protected API endpoints, including those intended for administrative functions. This vulnerability can be exploited after a legitimate user has logged in, as the system fails to properly validate session context or privilege boundaries. An attacker may leverage this flaw to perform unauthorized privileged operations. 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.
AI-Powered Analysis
Technical Analysis
CVE-2025-6892 is an Incorrect Authorization vulnerability (CWE-863) identified in Moxa’s EDR-G9010 Series network security appliances and routers, specifically version 1.0. The vulnerability stems from a flaw in the API authentication mechanism where the system fails to properly validate the session context and privilege boundaries after a legitimate user logs in. This means that once a user has authenticated, an attacker can exploit the improper authorization checks to access protected API endpoints that are intended only for administrative or privileged functions. The flaw allows unauthorized privileged operations on the device itself, potentially compromising its confidentiality, integrity, and availability. However, the vulnerability does not allow direct compromise of subsequent connected systems beyond the device. The CVSS 4.0 base score is 8.7 (high severity), reflecting network attack vector, low attack complexity, partial authentication required, user interaction needed, and high impact on confidentiality, integrity, and availability of the device. No patches or exploits are currently publicly available, but the vulnerability is published and reserved since mid-2025. The issue highlights a critical failure in session and privilege management within the API layer of these devices, which are commonly deployed in industrial and network security environments.
Potential Impact
For European organizations, especially those in critical infrastructure, manufacturing, energy, and telecommunications sectors, this vulnerability poses a significant risk. The EDR-G9010 Series devices are often deployed as security gateways or routers in industrial control systems and enterprise networks. Successful exploitation could allow attackers to gain unauthorized administrative control over these devices, leading to potential disruption of network traffic, manipulation or disabling of security functions, and denial of service conditions. The compromise of device integrity and availability could result in operational downtime, safety hazards, and loss of trust in network security. Although the vulnerability does not directly affect downstream systems’ confidentiality or integrity, the device’s critical role means its compromise could indirectly facilitate further attacks or network segmentation failures. European organizations with stringent regulatory requirements for network security and operational continuity could face compliance and reputational consequences if exploited.
Mitigation Recommendations
1. Implement strict session management and enforce robust validation of session context and privilege boundaries within the API layer. 2. Deploy network segmentation to isolate Moxa EDR-G9010 devices from less trusted network zones, limiting exposure. 3. Monitor API usage logs for anomalous or unauthorized access patterns, especially post-authentication. 4. Restrict user interaction paths that can trigger privileged API calls, applying the principle of least privilege. 5. Coordinate with Moxa for timely firmware updates or patches addressing this vulnerability once available. 6. Employ multi-factor authentication for all users accessing the device to reduce risk of unauthorized login. 7. Conduct regular security audits and penetration testing focusing on API authorization controls. 8. If possible, temporarily disable or restrict access to vulnerable API endpoints until a patch is applied. 9. Educate administrators and users about the risk of session hijacking or misuse following legitimate login. 10. Integrate device monitoring into centralized security information and event management (SIEM) systems for real-time alerting.
Affected Countries
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Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Moxa
- Date Reserved
- 2025-06-28T15:51:35.946Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 68f1ba682c5d344c54e5d94d
Added to database: 10/17/2025, 3:39:20 AM
Last enriched: 10/17/2025, 3:39:58 AM
Last updated: 10/19/2025, 9:50:39 AM
Views: 30
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