CVE-2025-52856

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

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.qnap.com/en/security-advisory/qsa-25-29	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:qnap:qvr::::::::
	cpe:2.3:a:qnap:qvr:5.1.6:-::::::

History

18 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Se ha reportado una vulnerabilidad de autenticación impropia que afecta a VioStor. Si un atacante remoto, puede entonces explotar la vulnerabilidad para comprometer la seguridad del sistema. Ya hemos corregido la vulnerabilidad en la siguiente versión: VioStor 5.1.6 build 20250621 y posteriores

Information

Published : 2025-08-29 18:15

Updated : 2026-10-18 21:10

NVD link : CVE-2025-52856

Mitre link : CVE-2025-52856

CVE.ORG link : CVE-2025-52856

JSON object : View

Products Affected

qnap

qvr

CWE

CWE-287

Improper Authentication

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