CVE-2024-52714 identifies a buffer overflow vulnerability in the Tenda AC6 v2.0 router firmware version 15.03.06.50, specifically within the 'fromSetSysTime' function. Buffer overflow vulnerabilities (CWE-120) occur when a program writes more data to a buffer than it can hold, potentially overwriting adjacent memory and enabling arbitrary code execution. This vulnerability is remotely exploitable over the network (Attack Vector: Adjacent Network) without requiring privileges or user interaction, making it accessible to attackers within the same broadcast domain or local network segment. The CVSS 3.1 base score of 8.1 reflects high severity, with impacts rated as high on confidentiality and integrity, but no impact on availability. An attacker exploiting this flaw could execute arbitrary code on the router, leading to full compromise of the device’s firmware. This could allow interception or manipulation of network traffic, unauthorized access to internal networks, or persistent backdoors. No patches or mitigations have been officially released yet, and no known exploits have been observed in the wild. The vulnerability’s presence in a widely used consumer router model increases the risk of targeted attacks, especially in environments where these devices are deployed without adequate network segmentation or monitoring. The lack of required authentication or user interaction lowers the barrier for exploitation, emphasizing the need for immediate attention from affected users and organizations.

The potential impact of CVE-2024-52714 is significant for organizations using Tenda AC6 v2.0 routers. Successful exploitation could lead to unauthorized remote code execution on the device, compromising the router’s confidentiality and integrity. Attackers could intercept sensitive data passing through the router, manipulate network traffic, or establish persistent access to internal networks. This could facilitate further lateral movement within corporate or home networks, data exfiltration, or disruption of network services. Since routers often serve as the first line of defense and traffic management, their compromise can undermine the overall security posture of an organization. The absence of authentication requirements and user interaction means attackers can exploit this vulnerability stealthily from within the local network or adjacent network segments. This elevates the risk in environments such as corporate offices, public Wi-Fi hotspots, and residential networks where these devices are deployed. The lack of an official patch increases exposure time, potentially inviting attackers to develop exploits. Overall, the vulnerability poses a high risk to confidentiality and integrity of network communications and device operation.

1. Immediately isolate affected Tenda AC6 v2.0 routers from untrusted networks or limit their exposure to local trusted segments only. 2. Monitor network traffic for unusual activity or signs of exploitation attempts targeting the 'fromSetSysTime' function or related router services. 3. Implement network segmentation to restrict access to router management interfaces and reduce the attack surface. 4. Disable remote management features on the router if enabled, especially those accessible from outside the local network. 5. Use firewall rules to limit access to the router’s administrative ports and services to trusted IP addresses only. 6. Regularly check for firmware updates from Tenda and apply patches promptly once available. 7. Consider replacing vulnerable devices with models from vendors with more timely security support if patches are delayed. 8. Employ intrusion detection/prevention systems (IDS/IPS) capable of detecting buffer overflow attempts or anomalous traffic patterns targeting routers. 9. Educate users and network administrators about the risks of unpatched router firmware and the importance of network hygiene. 10. Maintain backups of router configurations and logs to assist in incident response if exploitation occurs.