Critical9.8QNAP
improper authentication vulnerability has been reported to affect VioStor.
CVE-2025-52856 Published Aug 29, 2025Updated by vendor Jun 17, 2026
CVE-2025-52856
Affected products & platforms
QNAPUnclassified
Summary
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
Mitigation
Mitigation steps weren't captured by the parser for this advisory — this is a parsing gap, not a statement that no fix exists. Read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 5 hours ago·verify at source
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