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Vulnerability · Published Nov 4, 2026 · Assigned by VulDB

CVE-2026-121609Qihoo 360 Whole Home Router M5 Boot Script mpt start hard-coded credentials

Critical 10.0

In plain English

A critical-severity hard-coded credentials in Whole Home Router M5 from Qihoo 360. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).

Severity (CVSS 3.1)10.0Critical
Exploit odds (30 days)0.5%top 56.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
Qihoo 360 Whole Home Router M5 4.0.17.1566

Weakness: CWE-798, CWE-259 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C

References