Advisory Details

July 31st, 2025

(Pwn2Own) QNAP QHora-322 backup Use of Hard-coded Cryptographic Key Privilege Escalation Vulnerability

ZDI-25-740
ZDI-CAN-25641

CVE ID
CVSS SCORE 8.0, AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS QNAP
AFFECTED PRODUCTS QHora-322
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of QNAP QHora-322 routers. Authentication is required to exploit this vulnerability.

The specific flaw exists within the Backup and Restore functionality. The issue results from the use of a hardcoded cryptographic key. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.

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
  • 2024-12-02 - Vulnerability reported to vendor
  • 2025-07-31 - Coordinated public release of advisory
  • 2025-07-31 - Advisory Updated
CREDIT Anonymous
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