CVE-2025-15430 is a buffer overflow vulnerability identified in the UTT 进取 512W device, version 1.7.7-171114. The vulnerability arises from improper handling of the oldfilename parameter in the strcpy function within the /goform/formFtpServerShareDirSelcet endpoint. Since strcpy does not perform bounds checking, an attacker can supply a crafted input that exceeds the buffer size, causing memory corruption. This can lead to arbitrary code execution or a denial-of-service condition. The vulnerability is remotely exploitable without requiring authentication or user interaction, increasing its risk profile. The CVSS 4.0 score of 8.7 reflects its high severity, with network attack vector, low attack complexity, no privileges or user interaction needed, and high impact on confidentiality, integrity, and availability. The vendor was contacted but has not issued a patch or mitigation guidance, and a public exploit is available, increasing the likelihood of exploitation. The affected product is a network device, likely used in enterprise or industrial environments, making it a critical target for attackers aiming to disrupt operations or gain unauthorized access.

For European organizations, exploitation of this vulnerability could lead to severe consequences including unauthorized remote code execution, data breaches, and service outages. Critical infrastructure sectors such as telecommunications, manufacturing, and utilities that rely on UTT 进取 512W devices for network connectivity or management could face operational disruptions. The compromise of these devices could allow attackers to pivot into internal networks, escalate privileges, or exfiltrate sensitive information. Given the lack of vendor response and public exploit availability, the window for attackers to leverage this vulnerability is significant. Organizations may also face regulatory and compliance risks if the vulnerability leads to data breaches or service interruptions. The impact is heightened in environments where these devices are deployed at scale or integrated into critical network segments without adequate segmentation or monitoring.

1. Immediately isolate affected UTT 进取 512W devices from untrusted networks to prevent remote exploitation. 2. Disable or restrict access to the /goform/formFtpServerShareDirSelcet endpoint or related FTP server share directory configuration interfaces if possible. 3. Implement network-level protections such as firewall rules and intrusion prevention systems (IPS) to detect and block exploit attempts targeting this vulnerability. 4. Conduct thorough network scans to identify all instances of the affected device and version. 5. Monitor network traffic and device logs for unusual activity indicative of exploitation attempts. 6. Engage with UTT or third-party security vendors for potential unofficial patches or workarounds. 7. Plan for device replacement or firmware upgrade once a vendor patch becomes available. 8. Apply network segmentation to limit the exposure of vulnerable devices to critical internal systems. 9. Educate IT and security teams about the vulnerability and signs of exploitation to improve incident response readiness.