CVE-2026-24439 identifies a security weakness in Shenzhen Tenda Technology Co., Ltd.'s W30E V2 router firmware versions up to V16.01.0.19(5037). The firmware does not include the X-Content-Type-Options: nosniff header in HTTP responses on the device's web management interface. This header is important to prevent browsers from MIME sniffing responses and potentially executing malicious scripts embedded in attacker-influenced content. The vulnerability is categorized as CWE-116 (Improper Encoding or Escaping of Output). The CVSS 4.0 base score is 2.1, reflecting a low severity due to the requirement for user interaction and high attack complexity.

The absence of the X-Content-Type-Options: nosniff header may allow browsers that perform MIME sniffing to incorrectly interpret responses from the router's web management interface as executable scripts if an attacker can influence the response content. This could lead to limited script execution in the context of the management interface. However, the low CVSS score and lack of known exploits suggest the impact is minimal and exploitation is difficult.

No official patch or firmware update addressing this issue is currently available from Shenzhen Tenda Technology Co., Ltd. Users should monitor vendor advisories for any forthcoming updates. Until a fix is released, limiting access to the router's web management interface to trusted networks and users can reduce exposure. Since this is not a cloud service, remediation depends on vendor-supplied firmware updates. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.