CVE-2026-24429 describes a critical vulnerability in Shenzhen Tenda Technology Co., Ltd.'s W30E V2 router firmware (up to V16.01.0.19(5037)) where a built-in authentication account uses a default password that is not forced to be changed during initial configuration. This allows unauthenticated attackers to gain authenticated access to the management interface by leveraging these default credentials. The vulnerability is identified as CWE-1393 (Use of Default Password) and has a CVSS 4.0 score of 9.3, reflecting high attack vector and impact metrics. No patch or vendor advisory is currently provided, and the device is not a cloud service, so remediation depends on vendor updates or user action.

Successful exploitation allows an attacker to gain authenticated access to the router's management interface without prior privileges, potentially leading to full control over device configuration and network traffic. This can compromise network security and privacy. The vulnerability has a critical CVSS score of 9.3, indicating a high risk of severe impact if exploited.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should manually change any default passwords on the device if possible. Monitor Shenzhen Tenda's official channels for firmware updates addressing this issue. No cloud service remediation applies as this is a device firmware vulnerability.