CVE-2024-37645 identifies a stack overflow vulnerability in the TRENDnet TEW-814DAP router firmware version 1.01B01. The vulnerability is triggered via the submit-url parameter at the /formSysLog endpoint, which is part of the router's web management interface. A stack overflow occurs when the input data exceeds the buffer capacity on the stack, potentially overwriting adjacent memory and enabling arbitrary code execution or system crashes. The vulnerability is classified under CWE-121 (Stack-based Buffer Overflow). The CVSS 3.1 base score of 8.8 reflects its high severity, with an attack vector of network (AV:N), low attack complexity (AC:L), requiring privileges (PR:L), no user interaction (UI:N), and impacting confidentiality, integrity, and availability (C:H/I:H/A:H). Although exploitation requires some level of privilege, such as authenticated access to the device’s management interface, no user interaction is needed once access is obtained. This vulnerability could be leveraged by attackers to gain control over the router, manipulate network traffic, or disrupt network services. No official patches have been released yet, and no known exploits are publicly reported. Given the critical role of routers in network infrastructure, this vulnerability poses a significant risk to affected organizations.

The impact of CVE-2024-37645 is substantial for organizations relying on the TRENDnet TEW-814DAP router. Successful exploitation can lead to full compromise of the device, allowing attackers to execute arbitrary code, alter configurations, intercept or redirect network traffic, and cause denial of service. This undermines the confidentiality, integrity, and availability of the network environment. Organizations may face data breaches, operational disruptions, and potential lateral movement within internal networks. The requirement for some privilege to exploit limits immediate remote exploitation but does not eliminate risk, especially in environments with weak access controls or exposed management interfaces. The absence of known exploits currently provides a window for proactive mitigation, but the high CVSS score indicates that once exploits emerge, the threat will be critical. The vulnerability is particularly impactful in small and medium enterprises or home networks where this router model is deployed without robust security monitoring or segmentation.

1. Immediately restrict access to the router’s management interface by limiting it to trusted internal networks and disabling remote management if not necessary. 2. Implement strong authentication mechanisms and change default credentials to prevent unauthorized access. 3. Employ network segmentation to isolate vulnerable devices from critical infrastructure and sensitive data. 4. Monitor network traffic and logs for unusual activity targeting the /formSysLog endpoint or attempts to exploit the submit-url parameter. 5. Regularly audit device firmware versions and subscribe to vendor advisories for patch releases. 6. If possible, replace affected devices with models that have received security updates or have no known vulnerabilities. 7. Use intrusion detection/prevention systems (IDS/IPS) to detect exploitation attempts targeting this vulnerability. 8. Educate network administrators on the risks and signs of exploitation related to this vulnerability. 9. Consider deploying web application firewalls (WAF) or similar controls to filter malicious input to the router’s web interface. 10. Prepare incident response plans to quickly isolate and remediate compromised devices.