CVE Vulnerabilities

CVE-2025-52856

Improper Authentication

Published: Aug 29, 2025 | Modified: Dec 10, 2025
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

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

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

Name Vendor Start Version End Version
Qvr Qnap 5.1.0 (including) 5.1.6 (excluding)
Qvr Qnap 5.1.6 (including) 5.1.6 (including)

Potential Mitigations

References