CVE-2025-15461 is a remote buffer overflow vulnerability identified in the UTT 进取 520W device, specifically affecting firmware version 1.7.7-180627. The vulnerability arises from unsafe use of the strcpy function in the /goform/formTaskEdit endpoint, where the selDateType parameter is not properly validated, allowing an attacker to overflow the buffer. This overflow can corrupt memory, potentially enabling arbitrary code execution or denial of service. The vulnerability is remotely exploitable without requiring authentication or user interaction, increasing its risk profile. The CVSS 4.0 base score is 8.7, reflecting high impact on confidentiality, integrity, and availability with low attack complexity. Although an exploit has been published, no confirmed in-the-wild exploitation has been reported. The vendor was notified early but has not issued any patches or advisories. The lack of vendor response and patch availability leaves affected devices exposed. This vulnerability is critical for environments relying on this device for network or operational functions, as successful exploitation could lead to full device compromise and lateral movement within networks.

For European organizations using the UTT 进取 520W device, this vulnerability presents a significant security risk. Exploitation can lead to complete compromise of the device, enabling attackers to disrupt operations, exfiltrate sensitive data, or use the device as a foothold for further network intrusion. Given the device’s role in network infrastructure or industrial control, availability and integrity impacts could cause operational downtime or safety issues. The remote, unauthenticated nature of the exploit increases the likelihood of attacks, especially in sectors with less mature patch management or network segmentation. The absence of vendor patches exacerbates the risk, potentially leading to prolonged exposure. Organizations in critical infrastructure, manufacturing, or telecommunications sectors in Europe could face targeted attacks exploiting this vulnerability. Additionally, the published exploit code lowers the barrier for attackers, increasing the threat landscape.

Since no official patch is available, European organizations should implement immediate compensating controls. These include network-level filtering to block access to the /goform/formTaskEdit endpoint from untrusted networks, especially the internet. Deploying Web Application Firewalls (WAFs) with custom rules to detect and block malformed selDateType parameters can reduce risk. Network segmentation should isolate the affected devices from critical assets to limit lateral movement. Continuous monitoring for anomalous traffic patterns targeting this endpoint is essential. Organizations should also consider disabling or restricting remote management interfaces if not required. Engaging with UTT for updates and monitoring threat intelligence feeds for new exploit developments is recommended. Finally, planning for device replacement or firmware upgrade once a patch is released is critical for long-term security.