Cloudanix VulnDB

CVE-2025-53591

Medium · 6.5

CVSS

6.5

EPSS

0.3%

Published

Jan 2, 2026

CISA due date

—

The record

A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data or modify memory. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later

Affected packages

Ecosystem Package Introduced Fixed