CVE-2025-7116 is a critical buffer overflow vulnerability identified in the UTT 进取 750W device, specifically affecting firmware versions up to 3.2.2-191225. The vulnerability arises from improper handling of the 'ssid' argument within the /goform/Fast_wireless_conf endpoint. An attacker can remotely exploit this flaw by sending a specially crafted request that manipulates the SSID parameter, causing a buffer overflow. This overflow can lead to arbitrary code execution or denial of service conditions on the affected device. Notably, the attack does not require user interaction or prior authentication, increasing the risk of exploitation. The vendor was notified early but has not responded or provided a patch, and public exploit code has been disclosed, raising the likelihood of active exploitation. The CVSS v4.0 score is 8.7 (high severity), reflecting the vulnerability's network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. The lack of vendor response and patch availability further exacerbates the threat landscape for users of this device.

For European organizations, the impact of this vulnerability can be significant, especially for those relying on UTT 进取 750W devices in their network infrastructure. Successful exploitation could allow attackers to execute arbitrary code remotely, potentially leading to full device compromise. This can result in network disruptions, interception or manipulation of network traffic, and the use of compromised devices as footholds for lateral movement within corporate networks. Given the device's role in wireless network configuration, attackers might also alter wireless settings, causing denial of service or unauthorized access. The absence of a patch and public exploit availability increase the risk of targeted attacks or widespread scanning and exploitation campaigns. Organizations in sectors with critical infrastructure or sensitive data are particularly vulnerable to operational disruptions and data breaches stemming from this flaw.

Given the absence of an official patch, European organizations should implement immediate compensating controls. These include isolating UTT 进取 750W devices on segmented network zones with strict access controls to limit exposure. Network-level filtering should be applied to block or monitor traffic targeting the /goform/Fast_wireless_conf endpoint, especially requests manipulating the SSID parameter. Employing intrusion detection/prevention systems (IDS/IPS) with custom signatures to detect exploit attempts is recommended. Organizations should also inventory and identify all affected devices and consider replacing or upgrading hardware to models from vendors with active security support. Regular network monitoring for anomalous behavior and logs related to these devices should be intensified. Finally, organizations should engage with UTT or authorized distributors to seek firmware updates or official guidance and stay alert for any future patches or advisories.