What is CVE-2021-38686?

CVE-2021-38686 is a high-severity vulnerability in Qnap Qvr, classified under Improper Authentication. CVSS score: 8.8/10. Published 2021-11-26.

How severe is CVE-2021-38686?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-38686 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Qnap Qvr

CVE-2021-38686

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

Vulnerability class: Broken Authentication

EPSS: 0.009 (57.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Qnap Qvr
Qnap Systems Inc. Qvr — versions unspecified

Weakness classification (CWE)

CWE-287 — Improper Authentication

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

security@qnapsecurity.com.tw (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-38686?: CVE-2021-38686 is a high-severity vulnerability in Qnap Qvr, classified under Improper Authentication. CVSS score: 8.8/10. Published 2021-11-26.
How severe is CVE-2021-38686?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-38686 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.