CVE-2021-28800
QNAP · published 2021-06-24
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by QNAP Systems, Inc. via the CVE Program.
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. This issue affects: QNAP Systems Inc. QTS versions prior to 4.3.6.1663 Build 20210504; versions prior to 4.3.3.1624 Build 20210416. This issue does not affect: QNAP Systems Inc. QTS 4.5.3. QNAP Systems Inc. QuTS hero h4.5.3. QNAP Systems Inc. QuTScloud c4.5.5.
Status at the source
- NVD status: Modified
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| QNAP Systems Inc. | QTS | unspecified – before 4.3.6.1663 Build 20210504: affected unspecified – before 4.3.3.1624 Build 20210416: affected 4.5.3: unaffected |
| QNAP Systems Inc. | QuTS hero | h4.5.3: unaffected |
| QNAP Systems Inc. | QuTScloud | c4.5.5: unaffected |
Products named in NVD's CPE match criteria (1)
cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 3.1: 8.1 HIGH — as published by QNAP Systems, Inc. (Secondary)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 3.1: 9.8 CRITICAL — as published by NIST (Primary)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0: 7.5 HIGH — as published by NIST (Primary)
AV:N/AC:L/Au:N/C:P/I:P/A:P
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
- https://www.qnap.com/zh-tw/security-advisory/qsa-21-28
- https://www.qnap.com/zh-tw/security-advisory/qsa-21-28
Source dates: published 2021-06-24, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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