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
                
            Metrics
Affected Vendors & Products
References
        | Link | Providers | 
|---|---|
| https://www.qnap.com/en/security-advisory/qsa-25-29 | 
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History
                    Fri, 29 Aug 2025 19:15:00 +0000
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        ssvc
         
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Fri, 29 Aug 2025 17:30:00 +0000
| Type | Values Removed | Values Added | 
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| 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 | |
| Title | VioStor | |
| Weaknesses | CWE-287 | |
| References | 
         | |
| Metrics | 
        
        cvssV4_0
         
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Status: PUBLISHED
Assigner: qnap
Published: 2025-08-29T17:17:20.562Z
Updated: 2025-08-30T03:55:40.600Z
Reserved: 2025-06-20T05:51:57.033Z
Link: CVE-2025-52856
Updated: 2025-08-29T18:16:15.296Z
Status : Awaiting Analysis
Published: 2025-08-29T18:15:42.557
Modified: 2025-09-02T15:55:35.520
Link: CVE-2025-52856
No data.