CVE-2025-15160 is a stack-based buffer overflow vulnerability identified in the Tenda WH450 router firmware version 1.0.0.18. The flaw exists in an unspecified function within the /goform/PPTPServer endpoint, where manipulation of the 'ip1' parameter leads to a stack overflow condition. This vulnerability is remotely exploitable without requiring user interaction or elevated privileges, as indicated by the CVSS vector (AV:N/AC:L/AT:N/PR:H/UI:N). The vulnerability impacts the confidentiality, integrity, and availability of the device, with a CVSS v4.0 score of 8.6, categorizing it as high severity. The overflow can allow an attacker to execute arbitrary code on the router, potentially gaining full control over the device. This could enable attackers to disrupt network services, intercept or manipulate network traffic, or use the compromised router as a foothold for further attacks within an internal network. Although no known exploits are currently active in the wild, the public disclosure of the vulnerability increases the risk of exploitation attempts. The lack of available patches at the time of disclosure necessitates immediate mitigation efforts by affected organizations. The vulnerability highlights the importance of secure input validation and memory management in embedded network devices.

The impact of CVE-2025-15160 is significant for organizations relying on Tenda WH450 routers. Exploitation can lead to arbitrary code execution, allowing attackers to take full control of the device. This compromises the confidentiality of network traffic passing through the router, potentially exposing sensitive data. Integrity is also at risk, as attackers could alter configurations or inject malicious traffic. Availability can be disrupted by causing device crashes or denial of service conditions. Compromised routers can serve as entry points for lateral movement within corporate networks, increasing the risk of broader network breaches. Given the router’s role in network perimeter defense, exploitation could undermine overall organizational security posture. The lack of user interaction and remote exploitability make this vulnerability particularly dangerous, especially in environments where these routers are exposed to untrusted networks or the internet. Organizations without timely mitigation may face increased risk of targeted attacks or automated exploitation campaigns.

1. Immediately isolate affected Tenda WH450 devices from untrusted networks to reduce exposure. 2. Monitor network traffic for unusual activity originating from or targeting the router’s management interface, especially requests to /goform/PPTPServer. 3. Implement network segmentation to limit the router’s access to critical internal resources. 4. Disable PPTP server functionality if not required, as this may reduce the attack surface. 5. Apply any vendor-provided firmware updates or patches as soon as they become available. 6. If patches are unavailable, consider replacing affected devices with models from vendors with robust security track records. 7. Employ intrusion detection/prevention systems (IDS/IPS) with signatures targeting this vulnerability once they are released. 8. Conduct regular security assessments and penetration tests focusing on network infrastructure devices. 9. Educate network administrators about this vulnerability and the importance of securing router management interfaces. 10. Restrict access to router management interfaces to trusted IP addresses and use strong authentication mechanisms.