CVE-2024-32293 is a stack overflow vulnerability identified in the Tenda W30E router firmware version V1.0.1.25(633). The vulnerability arises from improper handling of the page parameter within the fromDhcpListClient function. Stack overflow vulnerabilities occur when a program writes more data to a buffer located on the stack than it can hold, potentially overwriting adjacent memory and enabling arbitrary code execution. In this case, an attacker with at least low-level privileges on the local network can craft a malicious request targeting the vulnerable parameter to trigger the overflow. The vulnerability does not require user interaction, increasing its risk profile. The CVSS v3.1 base score is 8.0, reflecting high impact on confidentiality, integrity, and availability, with attack vector being adjacent network (AV:A), low attack complexity (AC:L), low privileges required (PR:L), no user interaction (UI:N), and unchanged scope (S:U). Although no public exploits have been reported, the vulnerability is critical due to the potential for remote code execution on network infrastructure devices. The affected device, Tenda W30E, is a consumer-grade wireless router often deployed in home and small office environments, making it a potential target for attackers seeking to compromise network gateways.

Successful exploitation of this vulnerability allows an attacker to execute arbitrary code on the affected router, potentially gaining full control over the device. This can lead to interception or manipulation of network traffic, disruption of network services, and pivoting to other devices within the network. The compromise of a network gateway device like the Tenda W30E can severely impact confidentiality by exposing sensitive data, integrity by allowing malicious modifications to network configurations or traffic, and availability by causing device crashes or denial of service. Organizations relying on these routers for critical connectivity, especially in small office or home office scenarios, face increased risk of network breaches and persistent threats. The lack of available patches and known exploits in the wild suggests a window of exposure that attackers may attempt to exploit once proof-of-concept code becomes available.

1. Immediately isolate affected Tenda W30E devices from untrusted networks to limit exposure. 2. Monitor network traffic for unusual activity indicative of exploitation attempts targeting the fromDhcpListClient function or malformed page parameters. 3. Implement network segmentation to restrict access to management interfaces of routers to trusted administrators only. 4. Contact Tenda support or monitor official channels for firmware updates addressing this vulnerability and apply patches promptly once available. 5. Where possible, replace vulnerable devices with alternative routers that have a strong security track record and timely patching policies. 6. Employ intrusion detection systems (IDS) or intrusion prevention systems (IPS) with signatures or heuristics capable of detecting stack overflow attempts targeting this vulnerability. 7. Educate network administrators about the risk and signs of exploitation to enable rapid incident response. 8. Conduct regular security assessments of network infrastructure to identify and remediate similar vulnerabilities proactively.