CVE Feed

    Dashboard / CVE / CVE-2025-52856

    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 fixed the vulnerability in the following version: VioStor 5.1.6 build 20250621 and later

    Published:Aug 29, 2025
    Last Modified:Feb 26, 2026
    EPS:Aug 29, 2025
    EPSS Score:0.00467
    CVSS Score:9.8

    Affected Products

    Vendor
    Qnap
    Product
    Qvr

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

    CVE-2023-23355 (CVSS 6.6) — An OS command injection vulnerability has been reported to affect QNAP operating systems. If exploited, the vu…
    CVE-2022-27597 (CVSS 2.7) — A vulnerability has been reported to affect QNAP operating systems. If exploited, the out-of-bounds read vulne…
    CVE-2022-27588 (CVSS 9.8) — We have already fixed this vulnerability in the following versions of QVR: QVR 5.1.6 build 20220401 and later…
    CVE-2021-38686 (CVSS 8.8) — An improper authentication vulnerability has been reported to affect QNAP device, VioStor. If exploited, this …
    CVE-2021-38685 (CVSS 9.8) — A command injection vulnerability has been reported to affect QNAP device, VioStor. If exploited, this vulnera…
    CVE-2021-34352 (CVSS 7.2) — A command injection vulnerability has been reported to affect QNAP device running QVR. If exploited, this vuln…
    CVE-2021-34351 (CVSS 9.8) — A command injection vulnerability has been reported to affect QNAP device running QVR. If exploited, this vuln…
    CVE-2021-34349 (CVSS 7.2) — A command injection vulnerability has been reported to affect QNAP device running QVR. If exploited, this vuln…
    CVE-2021-34348 (CVSS 9.8) — A command injection vulnerability has been reported to affect QNAP device running QVR. If exploited, this vuln…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High