CVE-2025-15044 is a stack-based buffer overflow vulnerability identified in the Tenda WH450 router firmware version 1.0.0.18. The vulnerability resides in an unspecified function handling the /goform/NatStaticSetting endpoint, where the 'page' argument is improperly validated, allowing an attacker to overflow the stack buffer. This flaw can be exploited remotely without requiring any authentication or user interaction, making it highly accessible to attackers. The buffer overflow can lead to arbitrary code execution, potentially allowing an attacker to take full control of the affected device. The vulnerability has a CVSS 4.0 base score of 9.3, indicating critical severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. Although no known exploits are currently active in the wild, the public availability of exploit code increases the likelihood of exploitation attempts. The affected product, Tenda WH450, is a consumer and small office/home office (SOHO) router, commonly used in various regions including Europe. The vulnerability could be leveraged to disrupt network operations, intercept or manipulate traffic, or pivot into internal networks. No official patch or firmware update links have been published yet, emphasizing the need for interim mitigations.

For European organizations, this vulnerability poses a significant risk due to the critical nature of the flaw and the widespread use of Tenda WH450 routers in small businesses and home office environments. Exploitation could lead to full device compromise, enabling attackers to intercept sensitive communications, disrupt network availability, or use the device as a foothold for further attacks within corporate networks. This is particularly concerning for sectors with high reliance on secure and stable network infrastructure, such as finance, healthcare, and government agencies. The lack of authentication and user interaction requirements lowers the barrier for attackers, increasing the threat surface. Additionally, the public availability of exploit code may lead to rapid weaponization and exploitation campaigns targeting vulnerable devices across Europe. The potential for lateral movement and data exfiltration could have severe consequences for data privacy and regulatory compliance under GDPR and other European data protection laws.

1. Immediately monitor for any firmware updates or security advisories from Tenda addressing CVE-2025-15044 and apply patches as soon as they become available. 2. Restrict remote access to the management interface of Tenda WH450 devices by implementing network segmentation and firewall rules that limit access to trusted IP addresses only. 3. Deploy intrusion detection and prevention systems (IDS/IPS) with signatures or heuristics capable of detecting exploitation attempts targeting the /goform/NatStaticSetting endpoint. 4. Disable remote management features if not strictly necessary, or move management interfaces to a dedicated, secure management VLAN. 5. Conduct network scans to identify all Tenda WH450 devices within the environment and assess exposure to the internet or untrusted networks. 6. Educate users and administrators about the risks and signs of exploitation, including unusual device behavior or network traffic. 7. Implement network-level anomaly detection to identify potential exploitation attempts early. 8. Consider temporary compensating controls such as VPN-only access for device management until patches are available.