OS Command Injection Vulnerability in Qihoo 360 Products
CVE-2026-121607

10CRITICAL

Key Information:

Vendor

Qihoo 360

Status
D603-2
D600-2
D606-6
D706
Vendor
CVE Published:
4 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-121607?

A vulnerability exists in Qihoo 360 products, specifically within the function testspeed_command located in the /fs2/bin/iscm file. By manipulating the argument 'host', an attacker can execute arbitrary OS commands, potentially allowing for remote exploitation. This flaw affects versions of the D603-2, D600-2, D606-6, and D706 models up to version 6.4.9. The vendor was made aware of this issue but has not responded, raising concerns about the potential exploit being available for malicious actors.

Affected Version(s)

D600-2 6.4.0

D600-2 6.4.1

D600-2 6.4.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-121607 - Proof of Concept

References

https://vuldb.com/vuln/430444
vdb-entrytechnical-description
https://vuldb.com/vuln/430444/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-121607
third-party-advisory

CVSS V4

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

xiaomao (VulDB User)
VulDB CNA Team
.