Cyber Resilience

CVE-2023-50358

Command Injection in Qnap Qts 4.2.0 – 4.2.6

Public PoCCommand Injection
Published
13 February 2024
Modified
10 December 2025
Patch / advisory
View advisory
CVSS Score v3.1 5.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
EPSS Score 0.14 96th percentile
Risk Priority 54 floored blend · peak EPSS

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 Command and Scripting Interpreter (T1059); ranked in the top 4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

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 Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
attack.mitre.org →
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
attack.mitre.org →
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 →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-39297Same product: Qnap Qts
CVE-2023-23368Same product: Qnap Qts
CVE-2023-47567Same product: Qnap Qts
CVE-2023-47566Same product: Qnap Qts
CVE-2023-23362Same product: Qnap Qts
CVE-2024-27124Same product: Qnap Qts
CVE-2023-39302Same product: Qnap Qts
CVE-2023-23367Same product: Qnap Qts
CVE-2023-39294Same product: Qnap Qts
CVE-2024-21898Same product: Qnap Qts

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

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.5
  • V1.2.8
  • V15.2.5

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation can discover missing or incorrect command sanitization during development.

SI-10 Information Input Validation good match

Input validation directly neutralizes or rejects special characters that would otherwise alter OS command structure.

AC-6 Least Privilege partial match

Least privilege reduces the permissions available to any process that could be subverted by injected commands.

CM-7 Least Functionality partial match

Least functionality restricts available OS commands and interpreters, limiting the blast radius of injection.

SA-8 Security and Privacy Engineering Principles partial match

Secure engineering principles require proper neutralization of untrusted input before command construction.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

PR.PS-06's SDLC practices directly require secure coding and input handling that blocks command-injection defects, yet the single broad outcome leaves many specific neutralization vectors and verification gaps unaddressed.

PR.PS-02 partial match
prevents

Routine patching/maintenance can remediate known command-injection CVEs in dependencies (partial forward) but does nothing to stop developers from introducing improper neutralization in custom code (none reverse).

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing and code review target insecure use of operating-system command interfaces, catching command-injection flaws introduced during development.

References