CVE-2025-53596

QTS, QuTS hero

State: Published
Severity: 1.2 Low
Published: Jan 2, 2026
Updated: Jan 5, 2026
Reserved: Jul 4, 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 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

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
QTSQNAP Systems Inc.	5.2.x to before 5.2.7.3256 build 20250913Affected
QuTS heroQNAP Systems Inc.	h5.2.x to before h5.2.7.3256 build 20250913Affected h5.3.x to before h5.3.1.3250 build 20250912Affected

References

https://www.qnap.com/en/security-advisory/qsa-25-50

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