ZDI-26-239: (Pwn2Own) QNAP QHora-322 login.newAuthMiddleware.Authenticator Authentication Bypass Vulnerability

Published Mar 30, 2026
·
Updated

This vulnerability allows remote attackers to bypass authentication on affected installations of QNAP QHora-322 routers. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 5.6. The following CVEs are assigned: CVE-2025-62844.

Affected Software

1 affected component
QNAP QHora-322

Event History

Mar 30, 2026
Advisory Published
via ZDI·05:00 AM
Data Sourced
via ZDI·05:00 AM
Description

Frequently Asked Questions

1

What is the severity of ZDI-26-239?

The severity of ZDI-26-239 is critical as it allows remote attackers to bypass authentication on QNAP QHora-322 routers.

2

How do I fix ZDI-26-239?

To fix ZDI-26-239, users should apply the latest firmware updates provided by QNAP for the QHora-322 router.

3

What versions of QNAP QHora-322 are affected by ZDI-26-239?

All versions of QNAP QHora-322 routers are affected by ZDI-26-239 as it exploits an authentication bypass vulnerability.

4

Can ZDI-26-239 be exploited remotely?

Yes, ZDI-26-239 can be exploited remotely without the need for authentication, making it particularly dangerous.

5

What types of attackers are targeted by the vulnerability ZDI-26-239?

ZDI-26-239 targets remote attackers who can exploit the vulnerability without needing any valid credentials.

Contact

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Fortitude Valley,
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