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Critical · 9.3 CVE-2025-52856 EUVD-2025-26252GHSA-fjh8-m5r5-9wrm

VioStor

Published Aug 29, 2025 · Updated Feb 26, 2026 · Assigned by qnap

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

Affected products

VendorProductAffectedFixed
QNAP Systems VioStor 5.1.0 – < 5.1.6 build 20250621 5.1.6 build 20250621

References