What is CVE-2020-36197?

CVE-2020-36197 is a high-severity vulnerability in QNAP Music Station, classified under Improper Access Control. CVSS score: 7.1/10. Published 2021-05-13.

How severe is CVE-2020-36197?

High severity. CVSS v3 base score is 7.1 out of 10.

Is CVE-2020-36197 known to be exploited?

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

Path Traversal in QNAP Music Station

CVE-2020-36197

An improper access control vulnerability has been reported to affect earlier versions of Music Station. If exploited, this vulnerability allows attackers to compromise the security of the software by gaining privileges, reading sensitive information, executing commands, evading detection, etc. This issue affects: QNAP Systems Inc. Music Station versions prior to 5.3.16 on QTS 4.5.2; versions prior to 5.2.10 on QTS 4.3.6; versions prior to 5.1.14 on QTS 4.3.3; versions prior to 5.3.16 on QuTS hero h4.5.2; versions prior to 5.3.16 on QuTScloud c4.5.4.

Published 2021-05-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.

EPSS exploit prediction

EPSS: 0.185 (97.2th percentile), scored 2026-09-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.185 · newest: 0.185 · change: 0.000

Affected products

QNAP Music Station
QNAP Qts — versions 4.5.2, 4.3.6, 4.3.3
QNAP Qutscloud — versions c4.5.4
QNAP Quts Hero — versions h4.5.2
QNAP Systems Inc. Music Station — versions unspecified

Weakness classification (CWE)

Public proof-of-concept exploits

References

www.qnap.com/zh-tw/security-advisory/qsa-21-08 (Vendor Advisory)
www.zerodayinitiative.com/advisories/ZDI-21-591/ (VDB Entry, Third Party Advisory)
packetstormsecurity.com/files/162849/QNAP-MusicStation-MalwareRemover-File-Uplo… (Patch, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2020-36197?: CVE-2020-36197 is a high-severity vulnerability in QNAP Music Station, classified under Improper Access Control. CVSS score: 7.1/10. Published 2021-05-13.
How severe is CVE-2020-36197?: High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2020-36197 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.