CVE-2026-121609
CriticalCVSS 10.0Summary
A vulnerability was identified in the Qihoo 360 Whole Home Router M5 version 4.0.17.1566 within the boot script /etc/init.d/mpt (Home function). The issue involves hard-coded credentials. The exploit is publicly available and remote exploitation is possible.
Risk Assessment
Hard-coded credentials may allow an attacker to gain access to the device without knowing the password. Since the exploit is public, the risk of unauthorized router access is high.
Recommendation
Restrict access to the router management interface and monitor for unauthorized logins. Consider replacing the device or applying compensating controls, as the vendor did not respond to the disclosure.
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Original NVD description (English source)
A vulnerability was identified in Qihoo 360 Whole Home Router M5 4.0.17.1566. This issue affects the function Home of the file /etc/init.d/mpt of the component Boot Script. The manipulation leads to hard-coded credentials. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

