CVE-2025-52856

VioStor

State: Published
Severity: 9.3 Critical
Published: Aug 29, 2025
Updated: Feb 26, 2026
Reserved: Jun 20, 2025

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

Scores

CVSS	Score	Vector	Source
4.0	9.3 Critical	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	qnap

Weaknesses

CWE-287

Affected Products

Product	Versions
VioStorQNAP Systems Inc.	5.1.0 to before 5.1.6 build 20250621Affected

References

https://www.qnap.com/en/security-advisory/qsa-25-29

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.