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CRITICAL · 9.8

CVE-2025-52856

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 f...

Vulnerability 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

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
QnapQvr>= 5.1.0, < 5.1.6

Related Weaknesses (CWE)

CWE-287

References

FAQ

What is CVE-2025-52856?

CVE-2025-52856 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 f...

How severe is CVE-2025-52856?

CVE-2025-52856 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-52856?

Check the references section above for vendor advisories and patch information. Affected products include: Qnap Qvr.