Advisory Details

July 31st, 2025

(Pwn2Own) QNAP QHora-322 Improper Restriction of Communication Channel to Intended Endpoints Vulnerability

ZDI-25-756
ZDI-CAN-25488

CVE ID
CVSS SCORE 6.3, AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
AFFECTED VENDORS QNAP
AFFECTED PRODUCTS QHora-322
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to access the management interface on affected installations of QNAP QHora-322 routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the configuration of the management interface. The issue results from exposing the management interface on the WAN side of the router over IPv6. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of admin.
ADDITIONAL DETAILS QNAP has issued an update to correct this vulnerability. More details can be found at:
https://www.qnap.com/en-us/security-advisories
DISCLOSURE TIMELINE
  • 2024-12-16 - Vulnerability reported to vendor
  • 2025-07-31 - Coordinated public release of advisory
  • 2025-07-31 - Advisory Updated
CREDIT Chris Anastasio @mufinnnnnnn & Fabius Watson
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