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CVE-2025-52856— VioStor

Quick assessment

Affected
QNAP Systems Inc. VioStor
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 VioStor是中国台湾威联通科技（QNAP）公司的一个存储与管理视频监控系统的软件。 QNAP VioStor存在授权问题漏洞，该漏洞源于身份验证不当，可能危及系统安全。

AI Predicted 9.8 Difficulty: Trivial EPSS 0.63% · P47
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I. Basic Information for CVE-2025-52856

Vulnerability Information
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Vulnerability Title
VioStor
Source: CVE Program / CVE List V5
Vulnerability Description
An improper authentication vulnerability has been reported to affect VioStor. If a remote attacker, they can then exploit the vulnerability to compromise the security of the system. We have already fixed the vulnerability in the following version: VioStor 5.1.6 build 20250621 and later
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
QNAP VioStor 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNAP VioStor是中国台湾威联通科技（QNAP）公司的一个存储与管理视频监控系统的软件。 QNAP VioStor存在授权问题漏洞，该漏洞源于身份验证不当，可能危及系统安全。
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. VioStor 5.1.0 ~ 5.1.6 build 20250621 -

II. Public POCs for CVE-2025-52856

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III. Intelligence Information for CVE-2025-52856

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Same Patch Batch · QNAP Systems Inc. · 2025-08-29 · 41 CVEs total

CVE-2025-29888 File Station 5
CVE-2025-30261 Qsync Central
CVE-2025-30260 Qsync Central
CVE-2025-29900 File Station 5
CVE-2025-29899 File Station 5
CVE-2025-29898 Qsync Central
CVE-2025-29894 Qsync Central
CVE-2025-29893 Qsync Central
CVE-2025-29890 File Station 5
CVE-2025-29889 File Station 5
CVE-2025-30262 Qsync Central
CVE-2025-29887 QuRouter 2.5
CVE-2025-29886 File Station 5
CVE-2025-29882 QTS, QuTS hero
CVE-2025-29879 File Station 5
CVE-2025-29878 File Station 5
CVE-2025-29875 File Station 5
CVE-2025-29874 File Station 5
CVE-2025-22483 License Center
CVE-2024-12923 Photo Station

Showing top 20 of 41 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: VioStor
Same vendor: QNAP Systems Inc.
Same weakness: CWE-287

V. Comments for CVE-2025-52856

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