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CVE-2025-30269— 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 Central5.0.0.4之前版本存在格式化字符串错误漏洞，该漏洞源于使用外部控制的格式字符串，可能导致获取秘密数据或修改内存。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.30% · P20
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I. Basic Information for CVE-2025-30269

Vulnerability Information
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Vulnerability Title
Qsync Central
Source: CVE Program / CVE List V5
Vulnerability Description
A use of externally-controlled format string vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to obtain secret data or modify memory. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 ( 2026/01/20 ) 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:L/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
使用外部控制的格式字符串
Source: CVE Program / CVE List V5
Vulnerability Title
QNAP Qsync Central 格式化字符串错误漏洞
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 Central5.0.0.4之前版本存在格式化字符串错误漏洞，该漏洞源于使用外部控制的格式字符串，可能导致获取秘密数据或修改内存。
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.x.x ~ 5.0.0.4 ( 2026/01/20 ) -

II. Public POCs for CVE-2025-30269

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III. Intelligence Information for CVE-2025-30269

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Same Patch Batch · QNAP Systems Inc. · 2026-02-11 · 49 CVEs total

CVE-2025-58467 Qsync Central
CVE-2025-58472 Qsync Central
CVE-2025-62853 File Station 5
CVE-2025-66274 QTS, QuTS hero
CVE-2025-66277 QTS, QuTS hero
CVE-2025-66278 File Station 5
CVE-2025-68406 Qsync Central
CVE-2026-22894 File Station 5
CVE-2025-62856 File Station 5
CVE-2025-58470 Qsync Central
CVE-2025-58471 Qsync Central
CVE-2025-58466 QTS, QuTS hero
CVE-2025-57713 File Station 5
CVE-2025-57711 Qsync Central
CVE-2025-57710 Qsync Central
CVE-2025-57709 Qsync Central
CVE-2025-57708 Qsync Central
CVE-2025-57707 File Station 5
CVE-2025-54170 Qsync Central
CVE-2025-54169 File Station 5

Showing top 20 of 49 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Qsync Central
Same vendor: QNAP Systems Inc.
Same weakness: CWE-134

V. Comments for CVE-2025-30269

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