CVE-2025-11637 identifies a race condition vulnerability in the Tomofun Furbo 360 pet camera, specifically in the Audio Handler component of firmware version FB0035_FW_036. A race condition occurs when multiple threads or processes access shared resources concurrently without proper synchronization, potentially leading to inconsistent or unexpected behavior. In this case, remote attackers can manipulate the device to trigger this race condition without requiring authentication or user interaction. Although the exact function affected is unspecified, the vulnerability could allow attackers to disrupt audio processing or potentially cause device instability. The CVSS 4.0 vector indicates the attack is network-based (AV:N), requires low attack complexity (AC:L), no privileges (PR:L) but some limited privileges are needed, no user interaction (UI:N), and results in low impact on availability (VA:L) with no impact on confidentiality or integrity. The vendor Tomofun has not responded to disclosure requests, and no patches or exploit code are currently available. This leaves devices running the affected firmware vulnerable to potential exploitation. The lack of detailed technical data limits the ability to fully assess exploitation methods or impact scope, but the vulnerability is classified as medium severity due to the moderate CVSS score and limited impact.

For European organizations, the primary impact of CVE-2025-11637 lies in the potential disruption of Furbo 360 devices used in smart home or office environments. While the vulnerability does not directly compromise confidentiality or integrity, it could affect device availability or functionality, particularly audio features. This may lead to denial of service conditions or degraded user experience. Organizations relying on these devices for pet monitoring or other audio-related functions could face operational interruptions. Additionally, if attackers leverage this race condition as a foothold, it could serve as a pivot point for further network intrusion, especially in environments where IoT device security is weak. The absence of vendor patches increases risk, necessitating proactive mitigation. The impact is more pronounced in sectors with high smart device adoption, such as residential, hospitality, or small business environments across Europe.

Given the lack of vendor response and absence of patches, European organizations should implement compensating controls to mitigate risk from CVE-2025-11637. These include: 1) Network segmentation to isolate Furbo 360 devices from critical infrastructure and sensitive data networks, limiting lateral movement in case of compromise. 2) Deploying strict firewall rules to restrict inbound and outbound traffic to and from the devices, allowing only trusted sources. 3) Continuous monitoring of network traffic and device behavior for anomalies indicative of exploitation attempts, such as unusual audio handler activity or device instability. 4) Regularly auditing firmware versions and disabling or removing devices running the vulnerable firmware where feasible. 5) Engaging with Tomofun support channels to seek updates or advisories, and subscribing to vulnerability databases for future patch announcements. 6) Educating users about the risks and encouraging physical security to prevent local tampering. These measures go beyond generic advice by focusing on network-level controls and active monitoring tailored to the device’s role and threat profile.