CVE-2025-59386

QuTS hero

State: Published
Severity: 1.2 Low
Published: Feb 11, 2026
Updated: Feb 27, 2026
Reserved: Sep 15, 2025

Description

A NULL pointer dereference 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 launch a denial-of-service (DoS) attack.

We have already fixed the vulnerability in the following version: QuTS hero h5.3.2.3354 build 20251225 and later

Scores

CVSS	Score	Vector	Source
4.0	1.2 Low	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U	qnap

Weaknesses

CWE-476

Affected Products

Product	Versions
QuTS heroQNAP Systems Inc.	h5.3.x to before h5.3.2.3354 build 20251225Affected

References

https://www.qnap.com/en/security-advisory/qsa-26-08

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