CVE-2021-28804

Command Injection Vulnerabilities in QTS and QuTS hero

Description

A command injection vulnerabilities have been reported to affect QTS and QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary commands in a compromised application. This issue affects: QNAP Systems Inc. QTS versions prior to 4.5.1.1540 build 20210107. QNAP Systems Inc. QuTS hero versions prior to h4.5.1.1582 build 20210217.

Remediation

Solution:

  • QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1540 build 20210107 and later QuTS hero h4.5.1.1582 build 20210217 and later

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.49% Top 20%
Vendor Advisory qnap.com
Affected: QNAP Systems Inc. QTS
Affected: QNAP Systems Inc. QuTS hero
Published at:
Updated at:

References

Link Tags
https://www.qnap.com/zh-tw/security-advisory/qsa-21-29 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-28804?
CVE-2021-28804 has been scored as a critical severity vulnerability.
How to fix CVE-2021-28804?
To fix CVE-2021-28804: QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1540 build 20210107 and later QuTS hero h4.5.1.1582 build 20210217 and later
Is CVE-2021-28804 being actively exploited in the wild?
It is possible that CVE-2021-28804 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-28804?
CVE-2021-28804 affects QNAP Systems Inc. QTS, QNAP Systems Inc. QuTS hero.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.