CVE-2021-38686

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CVSS 3.1

8.8 high

EPSS

<1%p59

Published

Nov 26, 2021 (Nov 26, 2021)

Modified

Jun 17, 2026

Description

An improper authentication vulnerability has been reported to affect QNAP device, VioStor. If exploited, this vulnerability allows attackers to compromise the security of the system. We have already fixed this vulnerability in the following versions of QVR: QVR FW 5.1.6 build 20211109 and later

Vendors: qnap
Products: qvr
Weakness: CWE-287
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.9%)

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