Cyber Resilience

CVE-2023-50358

MediumPublic PoC

Published: 13 February 2024

Published
13 February 2024
Modified
10 December 2025
KEV Added
—
Patch
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CVSS Score v3.1 5.8 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
EPSS Score 0.0184 83.4th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-50358 is a medium-severity OS Command Injection (CWE-78) vulnerability in Qnap Qts. Its CVSS base score is 5.8 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 16.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

An OS command injection vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to execute commands via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.5.2645…

more

build 20240116 and later QTS 4.5.4.2627 build 20231225 and later QTS 4.3.6.2665 build 20240131 and later QTS 4.3.4.2675 build 20240131 and later QTS 4.3.3.2644 build 20240131 and later QTS 4.2.6 build 20240131 and later QuTS hero h5.1.5.2647 build 20240118 and later QuTS hero h4.5.4.2626 build 20231225 and later QuTScloud c5.1.5.2651 and later

CWE(s)
CWE-78

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
Why these techniques?

Unauthenticated OS command injection vulnerability in the public-facing quick.cgi web component allows remote exploitation for arbitrary Unix shell command execution.

Affected Assets

qnap
qts
4.2.6, 4.5.4.2627, 5.1.5.2645 · 4.2.0 — 4.2.6 · 4.3.0 — 4.3.3.2644 · 4.3.4 — 4.3.4.2675
qnap
quts hero
h4.5.4.2626, h5.1.5.2647 · h4.5.0 — h4.5.4.2626 · h5.0.0 — h5.1.5.2647
qnap
qutscloud
c5.0.0.1919 — c5.1.5.2651

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.

SC-27 Platform-independent Applications
addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

SI-10 Information Input Validation
addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

References