CVE-2025-34150 is an OS command injection vulnerability identified in the Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02). The vulnerability exists in the PPPoE configuration interface, specifically in the handling of the 'user' parameter. The device fails to properly neutralize special characters or commands embedded in this parameter, leading to command injection (CWE-78). An attacker can exploit this flaw remotely without authentication or user interaction, sending crafted input that the device processes unsafely during network setup. Successful exploitation grants the attacker root-level command execution on the device, enabling full control over the repeater’s operating system. This can be leveraged to disrupt network connectivity, intercept or manipulate traffic, deploy persistent malware, or pivot into connected internal networks. The CVSS 4.0 vector (AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H) reflects a critical severity with high impact on confidentiality, integrity, and availability, and low attack complexity. No official patches or fixes have been released as of the publication date (August 7, 2025), and no known exploits have been reported in the wild yet. The vulnerability affects all versions of the M300 Wi-Fi Repeater, indicating a systemic issue in the product’s firmware design. Given the device’s role in extending wireless network coverage, compromise can have cascading effects on network security and operational continuity.

For European organizations, exploitation of CVE-2025-34150 could lead to severe consequences. Root-level compromise of Wi-Fi repeaters can allow attackers to intercept sensitive communications, manipulate network traffic, and establish persistent footholds within corporate or critical infrastructure networks. This threatens confidentiality by exposing internal data flows, integrity by enabling unauthorized changes to network configurations or data, and availability by potentially disrupting wireless connectivity. Enterprises relying on Shenzhen Aitemi M300 devices for network extension or remote access points may face operational outages or data breaches. The vulnerability’s remote, unauthenticated nature increases the risk of widespread exploitation, especially in environments with limited network segmentation or monitoring. Additionally, attackers could use compromised devices as launch points for lateral movement or as part of botnets, amplifying the threat landscape. The absence of patches necessitates immediate risk mitigation to prevent exploitation, particularly in sectors such as finance, healthcare, manufacturing, and government where network reliability and data protection are paramount.

1. Immediately identify and inventory all Shenzhen Aitemi M300 Wi-Fi Repeaters within the network environment. 2. Disable the PPPoE configuration interface or restrict access to it via network segmentation and firewall rules to prevent unauthorized remote access. 3. Implement strict network access controls and monitoring to detect anomalous command injection attempts or unusual device behavior. 4. If possible, isolate vulnerable devices from critical network segments to limit potential impact. 5. Engage with the vendor for firmware updates or security advisories; if no patch is available, consider replacing affected devices with secure alternatives from reputable manufacturers. 6. Employ network intrusion detection systems (NIDS) with signatures or heuristics targeting command injection patterns related to PPPoE configuration traffic. 7. Conduct regular security audits and penetration testing focusing on network infrastructure devices. 8. Educate IT staff about the vulnerability and ensure incident response plans include scenarios involving compromised network hardware. 9. For organizations with remote or branch offices using these devices, enforce VPN or zero-trust network access to reduce exposure. 10. Maintain up-to-date asset management and vulnerability scanning to promptly detect similar issues in the future.