QTS, QuTS hero, QuTScloud

published 2023-10-13 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-39014

cvss: 6.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits: 0; none known

An OS command injection vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute commands via a network. QuTScloud is not affected.

We have already fixed the vulnerability in the following versions: QuTS hero h4.5.4.2626 build 20231225 and later QTS 4.5.4.2627 build 20231225 and later

Patch / fix

fixed in 2

QNAP Systems Inc. QuTS hero h4.5.4.2626 build 20231225
QNAP Systems Inc. QTS 4.5.4.2627 build 20231225

Exploit prediction

1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.6	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

QNAP Systems Inc. QuTS hero
QNAP Systems Inc. QTS
QNAP Systems Inc. QuTScloud

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command
CWE-89 Improper Neutralization of Special Elements used in an SQL Command

References

qnap.com /en/security-advisory/qsa-24-12

Sources

CVE List CVE-2023-34975
NVD CVE-2023-34975

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary