Cyber Resilience

CVE-2021-38693

Medium

Published: 05 May 2022

Published
05 May 2022
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0027 50.7th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-38693 is a medium-severity Path Traversal (CWE-22) vulnerability in Qnap Qts. Its CVSS base score is 5.3 (Medium).

Operationally, ranked in the top 49.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A path traversal vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, QTS, QVR Pro Appliance. If exploited, this vulnerability allows attackers to read the contents of unexpected files and expose sensitive data. We have already fixed…

more

this vulnerability in the following versions of QuTScloud, QuTS hero, QTS, QVR Pro Appliance: QuTScloud c5.0.1.1949 and later QuTS hero h5.0.0.1949 build 20220215 and later QuTS hero h4.5.4.1951 build 20220218 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

qnap
qts
≤ 4.5.4.1991 · 5.0.0.1716 — 5.0.0.1986
qnap
quts hero
h5.0.0.1772 — h5.0.0.1949
qnap
qutscloud
≤ c5.0.1.1949

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-22

Validates pathnames and filenames to prevent traversal outside intended directories.

References