CVE-2025-15090 identifies a buffer overflow vulnerability in the UTT 进取 512W device firmware up to version 1.7.7-171114. The vulnerability resides in the strcpy function call within the /goform/formConfigNoticeConfig endpoint, specifically related to the 'timestart' parameter. Because strcpy does not perform bounds checking, an attacker can supply an overly long input to 'timestart', causing a buffer overflow. This overflow can corrupt adjacent memory, potentially allowing arbitrary code execution or system crashes. The vulnerability is remotely exploitable without requiring user interaction or elevated privileges, as indicated by the CVSS vector (AV:N/AC:L/PR:L/UI:N). The CVSS score of 8.7 (high) reflects the critical impact on confidentiality, integrity, and availability, with high complexity due to the need for some privileges (PR:L). The vulnerability affects network-exposed devices, making it a serious threat to network infrastructure. While no confirmed exploits in the wild are reported, public exploit code availability increases the risk of attacks. The lack of available patches at the time of reporting necessitates immediate defensive measures. The vulnerability's exploitation could allow attackers to take full control of the device, disrupt network operations, or pivot to internal networks.

For European organizations, the impact of CVE-2025-15090 is significant, especially for those deploying UTT 进取 512W devices in critical network roles such as routing, switching, or security gateways. Exploitation could lead to remote code execution, enabling attackers to intercept, modify, or disrupt sensitive communications, potentially affecting data confidentiality and integrity. Availability could also be compromised through device crashes or persistent backdoors, impacting business continuity. Sectors such as telecommunications, government, finance, and critical infrastructure are particularly vulnerable due to their reliance on stable and secure network equipment. The remote and unauthenticated nature of the attack vector increases the risk of widespread exploitation, especially if devices are exposed to the internet or untrusted networks. The lack of patches and the public availability of exploit code further elevate the threat level, potentially leading to targeted attacks or automated scanning campaigns within Europe.

1. Immediate network segmentation to isolate UTT 进取 512W devices from untrusted networks, especially the internet, to reduce exposure. 2. Implement strict firewall rules to block access to the /goform/formConfigNoticeConfig endpoint or restrict management interfaces to trusted IP addresses only. 3. Monitor network traffic for unusual requests targeting the vulnerable endpoint or anomalous behavior indicative of exploitation attempts. 4. Engage with UTT vendor support channels to obtain firmware updates or patches addressing this vulnerability as soon as they become available. 5. If patching is not immediately possible, consider deploying virtual patching via intrusion prevention systems (IPS) that can detect and block exploit attempts. 6. Conduct thorough inventory and risk assessments to identify all affected devices within the organization. 7. Educate network administrators about the vulnerability and ensure secure configuration management practices to minimize attack surface. 8. Prepare incident response plans tailored to potential exploitation scenarios involving this vulnerability.