CVE-2025-3654 identifies an improper authorization vulnerability in the Petlibro Smart Pet Feeder Platform, specifically in versions up to 1.7.31. The flaw exists in the API endpoint /device/devicePetRelation/getBoundDevices, which is designed to return device information bound to a given pet ID. Due to insufficient authorization controls, an attacker can query this endpoint without authentication and retrieve sensitive hardware identifiers such as device serial numbers and MAC addresses. These identifiers can be leveraged to gain unauthorized full control over the device, potentially allowing manipulation of device functions or further exploitation. The vulnerability is remotely exploitable over the network without requiring user interaction or privileges, increasing its risk profile. The CVSS 4.0 base score is 6.9 (medium severity), reflecting the ease of exploitation and the impact on confidentiality and integrity, though availability is not affected. No patches or known exploits are currently documented, but the exposure of hardware identifiers can facilitate targeted attacks or device impersonation. The vulnerability highlights the risks of insecure API design in IoT devices, emphasizing the need for robust authorization mechanisms to protect sensitive device information and control interfaces.

For European organizations, the exploitation of CVE-2025-3654 could lead to significant privacy and security concerns. Unauthorized access to device serial numbers and MAC addresses can enable attackers to track devices, impersonate them, or escalate attacks within a network. In environments where smart pet feeders are integrated into broader smart home or IoT ecosystems, this could serve as a foothold for lateral movement or data exfiltration. Consumer privacy may be compromised, and device integrity undermined, potentially leading to unauthorized device control or disruption of pet feeding schedules. While the direct impact on critical infrastructure is limited, organizations with smart home deployments or pet care services could face reputational damage and customer trust erosion. Additionally, the vulnerability could be exploited as part of larger botnet campaigns or IoT-based attacks, indirectly affecting network performance and security posture.

To mitigate CVE-2025-3654, affected users and organizations should prioritize the following actions: 1) Apply vendor-provided patches or firmware updates once available to enforce proper authorization on the vulnerable API endpoints. 2) If patches are not yet released, restrict network access to the smart pet feeder devices by segmenting them into isolated VLANs or using firewall rules to block unauthorized inbound traffic to device management APIs. 3) Monitor network traffic for unusual API requests targeting /device/devicePetRelation/getBoundDevices or similar endpoints. 4) Implement strong network authentication and access controls for IoT devices, including the use of VPNs or zero-trust network principles. 5) Regularly audit IoT device configurations and firmware versions to ensure compliance with security best practices. 6) Educate users on the risks of exposing IoT devices to public or untrusted networks. These measures go beyond generic advice by focusing on network-level controls and proactive monitoring tailored to the specific API vulnerability.