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I. Basic Information for CVE-2025-30276
Vulnerability Information

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Vulnerability Title
Qsync Central
Source: NVD (National Vulnerability Database)
Vulnerability Description
An out-of-bounds write vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify or corrupt memory. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 ( 2026/01/20 ) and later
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
QNAP Qsync Central 缓冲区错误漏洞
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 Central 5.0.0.4之前版本存在缓冲区错误漏洞,该漏洞源于越界写入,可能导致修改或损坏内存。
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
VendorProductAffected VersionsCPESubscribe
QNAP Systems Inc.Qsync Central 5.0.x.x ~ 5.0.0.4 ( 2026/01/20 ) -
II. Public POCs for CVE-2025-30276
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III. Intelligence Information for CVE-2025-30276
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