The vulnerability identified as CVE-2025-11640 affects Tomofun Furbo 360 and Furbo Mini smart pet cameras, specifically related to their Bluetooth Low Energy (BLE) component. The flaw causes sensitive information to be transmitted in cleartext, which could be intercepted by an attacker with access to the local network. The exact nature of the sensitive information is unspecified, but it could include authentication tokens, device identifiers, or user data. Exploiting this vulnerability requires the attacker to be on the same local network as the device, limiting remote exploitation. The attack complexity is high, meaning it requires significant skill or resources, and no user interaction or authentication is needed. Firmware versions up to FB0035_FW_036 for Furbo 360 and MC0020_FW_074 for Furbo Mini are affected. The vendor has not issued patches or responded to disclosure, and no known exploits have been observed in the wild. The CVSS 4.0 vector indicates an attack vector of adjacent network (AV:A), high attack complexity (AC:H), no privileges required (PR:N), no user interaction (UI:N), and low impact on confidentiality (VC:L), with no impact on integrity or availability. This suggests the vulnerability primarily risks confidentiality through passive interception rather than active compromise or disruption. The lack of vendor response and patch availability means affected users must rely on network-level mitigations and monitoring to reduce risk.

For European organizations, the impact of CVE-2025-11640 is relatively low but not negligible. The vulnerability could allow an attacker on the same local network to intercept sensitive information transmitted in cleartext via BLE from Furbo devices. While this does not directly compromise device integrity or availability, exposure of sensitive data could lead to privacy violations or facilitate further targeted attacks if the intercepted data includes authentication credentials or network details. Organizations with smart office environments or employees using these devices at home may face increased risk of data leakage. The requirement for local network access and high attack complexity limits the threat to scenarios involving insider threats, compromised internal networks, or attackers gaining physical proximity. Given the absence of patches, the risk persists until firmware updates are released or devices are replaced. The vendor's lack of response may delay remediation, increasing exposure time. Overall, the threat is more relevant for privacy-conscious environments and organizations with strict data protection requirements under GDPR, where any leakage of personal data could have regulatory consequences.

Since no patches or firmware updates are currently available from Tomofun, European organizations and users should implement network-level mitigations. First, segment IoT devices like Furbo cameras onto isolated VLANs or separate Wi-Fi networks to restrict local network access and reduce exposure to unauthorized devices. Employ strong Wi-Fi encryption (WPA3 where possible) and robust network access controls to prevent unauthorized connections. Monitor network traffic for unusual BLE activity or unexpected data transmissions from these devices. Disable Bluetooth connectivity if not required or feasible. Educate users about the risks of connecting such devices to sensitive or corporate networks. Consider replacing affected devices with alternatives that have better security track records if risk tolerance is low. Maintain vigilance for vendor updates or community-developed patches and apply them promptly once available. Additionally, implement endpoint detection and response (EDR) solutions to detect lateral movement or suspicious activity that could indicate exploitation attempts within the local network.