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CVE-2025-52867— Qsync Central

Quick assessment

Affected
QNAP Systems Inc. Qsync Central
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 Qsync Central是中国台湾威联通科技（QNAP）公司的一个 NAS 上基于云的文件同步服务。 QNAP Qsync Central 5.0.0.2之前版本存在安全漏洞，该漏洞源于资源消耗不受控制，可能导致拒绝服务攻击。

AI Predicted 5.9 Difficulty: Easy EPSS 0.39% · P32

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-52867

Vulnerability Information
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Vulnerability Title
Qsync Central
Source: CVE Program / CVE List V5
Vulnerability Description
An uncontrolled resource consumption vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user 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: Qsync Central 5.0.0.2 ( 2025/07/31 ) and later
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
QNAP Qsync Central 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNAP Qsync Central是中国台湾威联通科技（QNAP）公司的一个 NAS 上基于云的文件同步服务。 QNAP Qsync Central 5.0.0.2之前版本存在安全漏洞，该漏洞源于资源消耗不受控制，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. Qsync Central 5.0.0 ~ 5.0.0.2 ( 2025/07/31 ) -

II. Public POCs for CVE-2025-52867

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III. Intelligence Information for CVE-2025-52867

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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: Qsync Central
Same vendor: QNAP Systems Inc.
Same weakness: CWE-400

V. Comments for CVE-2025-52867

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