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CVE-2025-52859— QTS, QuTS hero

Quick assessment

Affected
QNAP Systems Inc. QTS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

QNAP QTS和QNAP QuTS hero都是中国台湾威联通科技（QNAP）公司的一个具有数据存储与管理功能的软件。 QNAP QTS和QNAP QuTS hero存在代码问题漏洞，该漏洞源于空指针取消引用，可能导致拒绝服务攻击。

AI Predicted 4.9 Difficulty: Easy EPSS 0.36% · P29
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I. Basic Information for CVE-2025-52859

Vulnerability Information
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Vulnerability Title
QTS, QuTS hero
Source: CVE Program / CVE List V5
Vulnerability 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 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
QNAP QTS和QNAP QuTS hero 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNAP QTS和QNAP QuTS hero都是中国台湾威联通科技（QNAP）公司的一个具有数据存储与管理功能的软件。 QNAP QTS和QNAP QuTS hero存在代码问题漏洞，该漏洞源于空指针取消引用，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
QNAP Systems Inc. QTS 5.2.x ~ 5.2.6.3195 build 20250715 -
QNAP Systems Inc. QuTS hero h5.2.x ~ h5.2.6.3195 build 20250715 -

II. Public POCs for CVE-2025-52859

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III. Intelligence Information for CVE-2025-52859

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Vendor Advisories for CVE-2025-52859 (1)

Same Patch Batch · QNAP Systems Inc. · 2025-10-03 · 44 CVEs total

CVE-2025-44014 Qsync Central
CVE-2025-44010 Qsync Central
CVE-2025-44011 Qsync Central
CVE-2025-44009 Qsync Central
CVE-2025-44006 Qsync Central
CVE-2025-33040 Qsync Central
CVE-2025-33039 Qsync Central
CVE-2025-33034 Qsync Central
CVE-2024-56804 Video Station
CVE-2025-44007 Qsync Central
CVE-2025-44012 Qsync Central
CVE-2025-47210 Qsync Central
CVE-2025-47211 QTS, QuTS hero
CVE-2025-47212 QTS, QuTS hero
CVE-2025-47213 QTS, QuTS hero
CVE-2025-47214 QTS
CVE-2025-48726 QTS, QuTS hero
CVE-2025-48727 QTS, QuTS hero
CVE-2025-48728 QTS, QuTS hero
CVE-2025-48729 QTS, QuTS hero

Showing top 20 of 44 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: QTS
Same vendor: QNAP Systems Inc.
Same weakness: CWE-476

V. Comments for CVE-2025-52859

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