vulnerability
QNAP QTS: CVE-2021-28800: Command Injection Vulnerability in QTS
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Jun 24, 2021 | Aug 4, 2025 | Mar 25, 2026 |
Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Jun 24, 2021
Added
Aug 4, 2025
Modified
Mar 25, 2026
Description
A command injection vulnerability has been reported to affect QNAP NAS running legacy versions of QTS. If exploited, this vulnerability allows attackers to execute arbitrary commands in a compromised application. We have already fixed this vulnerability in the following versions: QTS 4.3.6.1663 Build 20210504 and later QTS 4.3.3.1624 Build 20210416 and later The latest versions of QTS, QuTS hero, and QuTScloud are not affected.
Solution
qnap-qts-upgrade-latest
References
- CWE-78
- CVE-2021-28800
- https://attackerkb.com/topics/CVE-2021-28800
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28800
- https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-28800
- https://www.qnap.com/en-uk/security-advisory/QSA-21-28
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-15456
Rapid7 Labs
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