CVE-2025-11652 is a remote buffer overflow vulnerability identified in the UTT 进取 518G device firmware, specifically affecting versions up to V3v3.2.7-210919-161313. The vulnerability is triggered by sending a specially crafted request to the /goform/formTaskEdit_ap endpoint, manipulating the txtMin2 parameter. This improper input validation leads to a buffer overflow condition, which can be exploited remotely without requiring authentication or user interaction. The overflow can allow attackers to execute arbitrary code, potentially gaining full control over the device. The vulnerability has a CVSS 4.0 base score of 8.7, indicating high severity due to its network attack vector, low attack complexity, no privileges required, and no user interaction needed. The impact on confidentiality, integrity, and availability is high, as successful exploitation could allow attackers to disrupt device operations, steal sensitive data, or use the device as a foothold for further network compromise. Despite early vendor notification, no patches or official mitigations have been released, and a public exploit is available, increasing the risk of active exploitation. The device is commonly used in certain industrial and enterprise environments, making this vulnerability particularly concerning for organizations relying on UTT 进取 518G hardware.

For European organizations, the exploitation of CVE-2025-11652 could lead to severe operational disruptions, data breaches, and potential lateral movement within networks. Given the device’s role in network infrastructure or industrial control systems, attackers could cause denial of service or manipulate critical processes. The lack of vendor response and available exploit code heightens the risk of widespread attacks. Organizations using this device may face regulatory and compliance challenges if the vulnerability leads to data loss or service outages. Additionally, the vulnerability could be leveraged by threat actors targeting European critical infrastructure or enterprises, amplifying geopolitical risks. The potential for full device compromise means attackers could establish persistent access, exfiltrate sensitive information, or launch further attacks from compromised devices.

Since no official patch is available, European organizations should implement immediate compensating controls. These include isolating affected UTT 进取 518G devices within segmented network zones with strict access controls, limiting exposure to untrusted networks. Deploy network intrusion detection/prevention systems (IDS/IPS) to monitor and block suspicious traffic targeting the /goform/formTaskEdit_ap endpoint or unusual txtMin2 parameter usage. Employ strict firewall rules to restrict remote access to the device management interfaces. Regularly audit device firmware versions and configurations to identify vulnerable units. Consider deploying virtual patching via web application firewalls (WAF) to detect and block exploit attempts. Engage with UTT or third-party security vendors for potential custom mitigations or firmware updates. Finally, maintain comprehensive logging and monitoring to detect exploitation attempts promptly and prepare incident response plans tailored to this vulnerability.