CVE-2025-52856
Critical
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
SeverityCritical
CVSS9.8
Exploit probability—
Product
Qnap Qvr
PublishedAug 29, 2025
First seenAug 29, 2025
Weakness typeCWE-287Improper authentication
How to fix
Update
- qnap qvr5.1.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| qnap qvr | 5.1.0 ≤ v < 5.1.6, 5.1.6 | 5.1.6 |
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