CVE-2024-32317 identifies a stack overflow vulnerability in the Tenda AC10 v4.0 router firmware versions V16.03.10.13 and V16.03.10.20. The vulnerability is triggered via the adslPwd parameter within the formWanParameterSetting function. Stack overflow vulnerabilities (CWE-121) occur when a program writes more data to a buffer located on the stack than it can hold, potentially overwriting adjacent memory and allowing attackers to execute arbitrary code or crash the system. In this case, the flaw is remotely exploitable over the network (AV:N), but requires high attack complexity (AC:H), meaning exploitation is difficult but feasible without authentication (PR:N) or user interaction (UI:N). The scope is classified as changed (S:C), indicating that exploitation can affect resources beyond the vulnerable component. The CVSS vector shows a high impact on confidentiality (C:H), partial impact on integrity (I:L), and no impact on availability (A:N). This suggests attackers could gain access to sensitive information and alter some data but not disrupt service availability directly. No known exploits are currently in the wild, and no official patches have been released, which means the vulnerability is newly disclosed and unmitigated. The affected firmware versions correspond to a popular consumer router model, widely used in home and small office environments, potentially exposing many users to risk. The lack of patches necessitates immediate risk management and monitoring for exploit attempts.

The vulnerability could allow remote attackers to execute arbitrary code or cause denial of service conditions on affected Tenda AC10 routers. This can lead to full compromise of the router’s confidentiality, exposing sensitive network configuration and traffic data. Partial integrity loss means attackers might alter configuration parameters or routing behavior, potentially enabling man-in-the-middle attacks or persistent network access. Although availability is not directly impacted, exploitation could indirectly disrupt network operations through instability or unauthorized configuration changes. Organizations relying on these routers for internet connectivity or as part of their network infrastructure face increased risk of data breaches, unauthorized access, and network manipulation. The absence of patches and public exploits means attackers may develop weaponized exploits, increasing the threat over time. The vulnerability’s presence in consumer-grade routers also raises concerns about widespread exploitation in home and small business environments, which often lack robust security monitoring.

Until official patches are released, organizations should implement network-level protections such as firewall rules to restrict access to router management interfaces from untrusted networks. Disabling remote management features on affected devices can reduce exposure. Monitoring network traffic for unusual activity targeting the adslPwd parameter or formWanParameterSetting function may help detect exploitation attempts. Users should regularly check Tenda’s official channels for firmware updates and apply them promptly once available. Employing network segmentation to isolate vulnerable routers from critical systems can limit potential damage. Additionally, replacing affected routers with models from vendors with faster patch cycles or better security track records may be considered for high-risk environments. Security teams should also educate users about the risks and encourage strong password policies to reduce attack surface.