Critical severity9.8NVD Advisory· Published Aug 29, 2025· Updated Jun 17, 2026
CVE-2025-52856
CVE-2025-52856
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
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- QNAP Systems Inc./VioStorv5Range: 5.1.0
Patches
Vulnerability mechanics
References
1- www.qnap.com/en/security-advisory/qsa-25-29nvdVendor Advisory
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