CVE-2021-28798
QNAP · published 2021-05-21
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by QNAP Systems, Inc. via the CVE Program.
A relative path traversal vulnerability has been reported to affect QNAP NAS running QTS and QuTS hero. If exploited, this vulnerability allows attackers to modify files that impact system integrity. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.2.1630 Build 20210406 and later QTS 4.3.6.1663 Build 20210504 and later QTS 4.3.3.1624 Build 20210416 and later QuTS hero h4.5.2.1638 Build 20210414 and later QNAP NAS running QTS 4.5.3 are not affected.
Status at the source
- NVD status: Modified
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| QNAP Systems Inc. | QTS | unspecified – before 4.5.2.1630 Build 20210406: affected 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 | unspecified – before h4.5.2.1638 Build 20210414: affected |
Products named in NVD's CPE match criteria (2)
cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*
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: 8.8 HIGH — as published by QNAP Systems, Inc. (Secondary)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 3.1: 7.5 HIGH — as published by NIST (Primary)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0: 5 MEDIUM — as published by NIST (Primary)
AV:N/AC:L/Au:N/C:N/I:P/A:N
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-21-14
- https://www.qnap.com/zh-tw/security-advisory/qsa-21-14
Source dates: published 2021-05-21, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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