---
id: CVE-2026-121609
title: Qihoo 360 Whole Home Router M5 Boot Script mpt start hard-coded credentials
summary: >-
  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 exploit…
severity: critical
cvss: 10
cvssVector: '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'
cvssSource: cna
cwe:
  - CWE-798
  - CWE-259
vendor: Qihoo 360
product: Whole Home Router M5
affected:
  - whole_home_router_m5 4.0.17.1566
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T01:45:46.225Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121609'
references:
  - url: 'https://vuldb.com/vuln/430446'
    label: >-
      VDB-430446 | Qihoo 360 Whole Home Router M5 Boot Script mpt start
      hard-coded credentials
  - url: 'https://vuldb.com/vuln/430446/cti'
    label: 'VDB-430446 | CTI Indicators (IOB, IOC, TTP, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-121609'
    label: CVE-2026-121609 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/1023264'
    label: >-
      Submit #1023264 | 360 (Qihoo 360) 360 Whole Home Router M5 4.0.17.1566 Use
      of Hard-coded Credentials
  - url: 'https://gist.github.com/gajgdm6-cpu/c8c3bbdeb51c076317834b41c3a919f2'
tags:
  - cve.org
epss: 0.00501
epssPercentile: 0.43037
ingestedAt: '2026-11-05T20:33:06.658Z'
---

## Overview

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

- `whole_home_router_m5 4.0.17.1566`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.