CVE-2021-44052
QNAP · published 2022-05-05
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by QNAP Systems, Inc. via the CVE Program.
An improper link resolution before file access ('Link Following') vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, and QTS. If exploited, this vulnerability allows remote attackers to traverse the file system to unintended locations and read or overwrite the contents of unexpected files. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, and QTS: QuTScloud c5.0.1.1998 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTS hero h5.0.0.1986 build 20220324 and later QTS 4.3.4.1976 build 20220303 and later QTS 4.3.3.1945 build 20220303 and later QTS 4.2.6 build 20220304 and later QTS 4.3.6.1965 build 20220302 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later
Status at the source
- NVD status: Modified
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| QNAP Systems Inc. | QuTScloud | unspecified – before c5.0.1.1998: affected |
| QNAP Systems Inc. | QuTS hero | unspecified – before h4.5.4.1971 build 20220310: affected unspecified – before h5.0.0.1986 build 20220324: affected |
| QNAP Systems Inc. | QTS | unspecified – before 4.3.4.1976 build 20220303: affected unspecified – before 4.3.3.1945 build 20220303: affected unspecified – before 4.2.6 build 20220304: affected unspecified – before 4.3.6.1965 build 20220302: affected unspecified – before 5.0.0.1986 build 20220324: affected unspecified – before 4.5.4.1991 build 20220329: affected |
Products named in NVD's CPE match criteria (4)
cpe:2.3:a:qnap:qts:*:*:*:*:*:*:*:*cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*cpe:2.3:o:qnap:qutscloud:*:*:*:*:*:*:*:*
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: 6.5 MEDIUM — as published by QNAP Systems, Inc. (Secondary)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 3.1: 8.1 HIGH — as published by NIST (Primary)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N - CVSS 2.0: 5.5 MEDIUM — as published by NIST (Primary)
AV:N/AC:L/Au:S/C:P/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/en/security-advisory/qsa-22-16
- https://www.qnap.com/en/security-advisory/qsa-22-16
Source dates: published 2022-05-05, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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