CVE-2025-15177 is a stack-based buffer overflow vulnerability discovered in the Tenda WH450 router firmware version 1.0.0.18. The flaw resides in the HTTP Request Handler component, specifically in the /goform/SetIpBind endpoint. An attacker can manipulate the 'page' argument in HTTP requests to trigger a stack overflow, which can lead to arbitrary code execution on the device. The vulnerability is remotely exploitable over the network without requiring authentication or user interaction, making it highly dangerous. The CVSS 4.0 base score is 8.6, reflecting its high severity due to the ease of exploitation (network attack vector, low attack complexity), and the potential for complete compromise of the device (high impact on confidentiality, integrity, and availability). The vulnerability does not require user interaction or privileges, increasing its risk profile. While no public patches or exploits in the wild have been reported yet, the public disclosure of the vulnerability and exploit details increases the likelihood of active exploitation attempts. The affected device, Tenda WH450, is a consumer and small office/home office (SOHO) router, commonly deployed in various regions, especially in Asia and developing markets. Successful exploitation could allow attackers to execute arbitrary code, potentially gaining control over the router, intercepting or manipulating network traffic, or using the device as a foothold for further attacks within the network.

The impact of CVE-2025-15177 is significant for organizations relying on Tenda WH450 routers running vulnerable firmware. Exploitation can lead to full device compromise, allowing attackers to execute arbitrary code with high privileges. This can result in interception or manipulation of network traffic, disruption of network services, unauthorized access to internal networks, and potential lateral movement to other systems. For enterprises and critical infrastructure using these devices, this could lead to data breaches, operational downtime, and loss of trust. Since the vulnerability is remotely exploitable without authentication or user interaction, it poses a high risk of automated attacks and worm-like propagation within vulnerable networks. The lack of current known exploits in the wild does not diminish the threat, as public disclosure often triggers rapid development of exploit tools. The vulnerability also threatens home users and small businesses, potentially exposing sensitive personal or business data. Overall, the threat could affect confidentiality, integrity, and availability of network communications and connected systems.

1. Immediate mitigation should include restricting access to the router’s management interface by implementing network segmentation and firewall rules to block external access to the /goform/SetIpBind endpoint. 2. Disable remote management features if not required, especially from untrusted networks such as the internet. 3. Monitor network traffic for unusual or malformed HTTP requests targeting the /goform/SetIpBind endpoint to detect potential exploitation attempts. 4. Employ intrusion detection/prevention systems (IDS/IPS) with signatures or anomaly detection tuned to identify buffer overflow attempts against Tenda WH450 devices. 5. Regularly audit and inventory network devices to identify vulnerable Tenda WH450 routers and prioritize them for remediation. 6. Once available, promptly apply official firmware updates or patches from Tenda addressing this vulnerability. 7. If patches are unavailable, consider replacing vulnerable devices with models from vendors with active security support. 8. Educate network administrators about this vulnerability and ensure incident response plans include steps for handling potential exploitation. 9. Use network segmentation to isolate vulnerable devices from critical infrastructure to limit potential lateral movement. 10. Implement strong network access controls and multi-factor authentication for device management interfaces to reduce risk of unauthorized access.