CVE-2025-52855 MEDIUM

CVE-2025-52855: QTS, QuTS hero

Vendor Qnap Systems Inc.
Product QTS
Weakness CWE-476
Published October 3, 2025
Last update October 3, 2025

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

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 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later

Key dates

02Disclosure timeline

October 3, 2025 CVE published
October 3, 2025 Record updated