CVE-2025-15006 is a stack-based buffer overflow vulnerability identified in the Tenda WH450 router firmware version 1.0.0.18. The vulnerability resides in the HTTP request handler component, specifically within the /goform/CheckTools endpoint. An attacker can remotely send a specially crafted HTTP request manipulating the ipaddress parameter, causing a stack buffer overflow. This overflow can lead to arbitrary code execution or cause the device to crash, resulting in denial of service. The vulnerability requires no authentication or user interaction, making it highly exploitable over the network. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and high impact on confidentiality, integrity, and availability (VC:H/VI:H/VA:H). Although no official patches have been released yet, a public exploit is available, increasing the likelihood of exploitation. The vulnerability affects only version 1.0.0.18 of the Tenda WH450 firmware, so devices running other versions or models are not impacted. The flaw stems from improper input validation and insufficient bounds checking on the ipaddress argument, a common cause of buffer overflow vulnerabilities in embedded device web interfaces. Successful exploitation could allow attackers to gain control over the router, intercept or manipulate network traffic, or disrupt network availability.

The impact of CVE-2025-15006 is severe for organizations using Tenda WH450 routers, especially those running the vulnerable firmware version 1.0.0.18. Exploitation can lead to full compromise of the affected device, enabling attackers to execute arbitrary code remotely without authentication. This can result in unauthorized access to internal networks, interception or manipulation of sensitive data, and disruption of network services through denial of service. For enterprises, this could mean exposure of confidential information, interruption of business operations, and potential lateral movement within the network. For service providers or critical infrastructure relying on these devices, the vulnerability poses risks to network stability and security. The availability of a public exploit increases the likelihood of attacks, including automated scanning and exploitation by threat actors. Given the device’s role as a network gateway, compromise could have cascading effects on connected systems and users.

To mitigate CVE-2025-15006, organizations should immediately identify and isolate all Tenda WH450 devices running firmware version 1.0.0.18. Since no official patch is currently available, consider the following specific actions: 1) Disable or restrict access to the /goform/CheckTools endpoint via firewall rules or access control lists, limiting exposure to trusted management networks only. 2) Implement network segmentation to isolate vulnerable devices from critical infrastructure and sensitive data environments. 3) Monitor network traffic for unusual HTTP requests targeting the ipaddress parameter or the /goform/CheckTools path, using intrusion detection/prevention systems with updated signatures. 4) If possible, downgrade or upgrade the firmware to a non-vulnerable version once available from the vendor. 5) Apply strict network access policies to limit remote management interfaces to authorized personnel and IP addresses. 6) Conduct regular vulnerability scanning and penetration testing to detect exploitation attempts. 7) Maintain an incident response plan ready to address potential compromises involving these devices. These targeted mitigations go beyond generic advice by focusing on the specific vulnerable endpoint and attack vector.