Is there a public exploit for CVE-2026-121609?

No public exploit for CVE-2026-121609 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-121609?

CVE-2026-121609 scores CVSS 10 (v4.0), rated critical.

What does CVE-2026-121609 affect?

CVE-2026-121609 affects Qihoo 360 Whole Home Router M5.

10.0 Critical

A vulnerability was identified in Qihoo 360 Whole Home Router M5 4.0.17.1566.

CVE-2026-121609

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.

Assessment

CVSS: 10 (v4.0)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 4 November 2026
Last updated: 4 November 2026
Affected: Qihoo 360 · Whole Home Router M5
Assigner: VulDB

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

At the source

EUVD (ENISA)

References

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