CVE-2025-11690 is an Insecure Direct Object Reference (IDOR) vulnerability classified under CWE-639, found in the CFMOTO RIDE application version 1. The vulnerability arises because the vehicleId parameter is user-controllable and lacks proper authorization validation on the server side. This allows an attacker with limited privileges (PR:L) to bypass authorization controls and access sensitive information belonging to other users’ vehicles. The exposed data includes GPS coordinates, encryption keys, initialization vectors, model numbers, and fuel statistics, which are highly sensitive and could be leveraged for tracking, unauthorized decryption, or profiling of vehicle usage. The vulnerability has a CVSS 3.1 base score of 8.5, indicating high severity, with network attack vector (AV:N), low attack complexity (AC:L), and no user interaction (UI:N). The scope is changed (S:C), meaning the attacker can access resources beyond their privileges. The impact on confidentiality is high, integrity is low, and availability is unaffected. The vulnerability was reserved on 2025-10-13 and published on 2025-11-04. No public exploits are known yet, but the flaw’s nature suggests it could be exploited remotely by authenticated users. The recommended fix is a server-side authorization check ensuring that users can only access data for vehicles they own or are authorized to view. This vulnerability highlights the critical need for robust access control mechanisms in IoT and connected vehicle applications.

For European organizations, this vulnerability poses a significant risk to confidentiality and privacy of vehicle telemetry data. Unauthorized access to GPS coordinates can lead to tracking and stalking risks, while exposure of encryption keys and initialization vectors could compromise the security of communications or stored data within the vehicle ecosystem. Fuel statistics and model numbers may reveal usage patterns and vehicle capabilities, potentially aiding industrial espionage or competitive intelligence. Organizations relying on CFMOTO RIDE for fleet management, logistics, or vehicle monitoring could suffer data breaches, regulatory non-compliance (e.g., GDPR violations), and reputational damage. The integrity impact is lower but still relevant if attackers manipulate or infer data from exposed information. Although availability is not impacted, the breach of sensitive data alone warrants urgent remediation. The threat is particularly acute for sectors such as transportation, logistics, law enforcement, and governmental agencies using CFMOTO vehicles or services in Europe.

1. Implement strict server-side authorization checks to validate that the requesting user is authorized to access the vehicle data identified by the vehicleId parameter. 2. Employ role-based access control (RBAC) or attribute-based access control (ABAC) to enforce fine-grained permissions. 3. Conduct thorough code reviews and penetration testing focusing on IDOR and access control vulnerabilities. 4. Monitor API access logs for anomalous requests attempting to access multiple or unauthorized vehicleIds. 5. Limit API exposure by requiring strong authentication mechanisms, such as multi-factor authentication (MFA), and use of short-lived tokens. 6. Encrypt sensitive data both in transit and at rest, and consider additional safeguards for encryption keys and initialization vectors. 7. Educate developers on secure coding practices related to authorization and input validation. 8. Coordinate with CFMOTO for timely deployment of official patches and updates. 9. For organizations managing fleets, implement network segmentation and restrict access to vehicle management systems to trusted networks and personnel only. 10. Prepare incident response plans to address potential data breaches involving vehicle telemetry data.