CVE-2023-34975Network attack vector

Administrator command execution via undisclosed injection

Published Oct 13, 2023 · Updated Jan 12, 2026

OS command injection in QNAP QTS 4.5.x and QuTS hero h4.5.x allows remote authenticated users to execute commands over a network. QNAP has not published the affected component, input field, or command construction that fails to neutralize attacker-controlled data. Administrator access is required, and successful exploitation has bounded confidentiality, integrity, and availability consequences.

CVSS severity6.6
Medium
EPSS probability1.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

OS command injection in QNAP QTS 4.5.x and QuTS hero h4.5.x allows remote authenticated users to execute commands over a network. QNAP has not published the affected component, input field, or command construction that fails to neutralize attacker-controlled data. Administrator access is required, and successful exploitation has bounded confidentiality, integrity, and availability consequences.

The record

CVE
CVE-2023-34975
Published
Oct 13, 2023
Updated
Jan 12, 2026
Vendor
Linn Products Limited
Product
QuTS hero
Classifications
CWE-78, CAPEC-88, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 12, 2026Record 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 <h4.5.4.2626 build 20231225

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Linn Products Limited · QuTS heroversion=h4.5.x <h4.5.4.2626 build 20231225
Linn Products Limited · QTSversion=4.5.x <4.5.4.2627 build 20231225

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.6QNAP Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS Command Injection
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo