CVE-2024-44550 is a stack overflow vulnerability identified in the Tenda AX1806 router firmware version 1.0.0.1. The vulnerability resides in the function formGetIptv, which processes the adv.iptv.stbpvid parameter. A stack overflow occurs when this parameter is manipulated with specially crafted input, leading to memory corruption. Stack overflows are a classic form of buffer overflow (CWE-121) that can allow attackers to overwrite the call stack, potentially enabling arbitrary code execution or causing a denial of service by crashing the device. This vulnerability is remotely exploitable without requiring any authentication or user interaction, increasing its risk profile. The CVSS 3.1 base score is 8.8, reflecting high impact on confidentiality, integrity, and availability, with low attack complexity and no privileges required. The vulnerability was published on August 26, 2024, but no patches or known exploits have been reported yet. The Tenda AX1806 is a consumer-grade Wi-Fi 6 router, often deployed in residential and small business networks, making it a target for attackers seeking to compromise network infrastructure or pivot into internal networks. The lack of a patch means that mitigation currently relies on network-level controls and monitoring.

If exploited, this vulnerability could allow remote attackers to execute arbitrary code on the affected router, leading to full compromise of the device. This includes the ability to intercept, modify, or block network traffic, disrupt internet connectivity, and potentially use the compromised router as a foothold for further attacks within the internal network. The confidentiality of all data passing through the router could be compromised, integrity of network communications could be undermined, and availability could be disrupted through denial of service. Given the router’s role as a gateway device, exploitation could have cascading effects on connected devices and services. The lack of authentication and user interaction requirements makes this vulnerability particularly dangerous, as attackers can exploit it remotely without user awareness. Organizations relying on Tenda AX1806 routers, especially in environments with sensitive data or critical operations, face significant risk until remediation is applied.

Currently, no official patches are available for CVE-2024-44550, so organizations should implement the following mitigations: 1) Immediately disable remote management interfaces on the Tenda AX1806 router to prevent external access to the vulnerable function. 2) Restrict network access to the router’s management ports using firewall rules or network segmentation to limit exposure. 3) Monitor network traffic for unusual or malformed requests targeting the adv.iptv.stbpvid parameter or related IPTV services. 4) If possible, replace the affected router with a different model or vendor that has confirmed patches or is not vulnerable. 5) Stay informed on vendor advisories for firmware updates and apply patches promptly once available. 6) Employ network intrusion detection/prevention systems (IDS/IPS) with signatures targeting this vulnerability once they become available. 7) Educate users about the risks of exposing router management interfaces to the internet. These steps go beyond generic advice by focusing on immediate network-level controls and proactive monitoring to reduce attack surface until a patch is released.