CVE-2023-23368Network attack vector

Unauthenticated command execution via undisclosed network input

Published Nov 3, 2023 · Updated Feb 27, 2025

OS command injection in QNAP QTS, QuTS hero, and QuTScloud affected releases allows remote attackers to execute commands via a network. QNAP has not published the affected component, request field, or command-construction operation that mishandles untrusted input. No authentication or user interaction is required, and successful exploitation grants command execution with confidentiality, integrity, and availability impact.

CVSS severity9.8
Critical
EPSS probability18.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in QNAP QTS, QuTS hero, and QuTScloud affected releases allows remote attackers to execute commands via a network. QNAP has not published the affected component, request field, or command-construction operation that mishandles untrusted input. No authentication or user interaction is required, and successful exploitation grants command execution with confidentiality, integrity, and availability impact.

The record

CVE
CVE-2023-23368
Published
Nov 3, 2023
Updated
Feb 27, 2025
Vendor
Linn Products Limited
Product
QuTS hero
Classifications
CWE-78, T1190, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=h4.5.x <h4.5.4.2374 build 20230417
  2. Affected versionversion=h5.0.x <h5.0.1.2376 build 20230421

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Linn Products Limited · QuTS heroversion=h4.5.x <h4.5.4.2374 build 20230417; version=h5.0.x <h5.0.1.2376 build 20230421
Linn Products Limited · QuTScloudversion=c5.x.x <c5.0.1.2374
Linn Products Limited · QTSversion=4.5.x <4.5.4.2374 build 20230416; version=5.0.x <5.0.1.2376 build 20230421

Published CVSS scores

9.8QNAP Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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