CVE-2020-2509
QNAP · published 2021-04-17
Source record Collected from the National Vulnerability Database (NVD)
CISA Known Exploited Vulnerabilities
CISA lists this CVE as known exploited (added 2022-04-11).
- CISA's name for it: QNAP Network-Attached Storage (NAS) Command Injection Vulnerability
- CISA's description: QNAP NAS devices contain a command injection vulnerability which could allow attackers to perform remote code execution.
- Known ransomware campaign use, per CISA: Unknown
Source: CISA KEV catalog (CC0 1.0).
Description
Description by QNAP Systems, Inc. via the CVE Program.
A command injection vulnerability has been reported to affect QTS and QuTS hero. 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 4.5.2.1566 Build 20210202 and later QTS 4.5.1.1495 Build 20201123 and later QTS 4.3.6.1620 Build 20210322 and later QTS 4.3.4.1632 Build 20210324 and later QTS 4.3.3.1624 Build 20210416 and later QTS 4.2.6 Build 20210327 and later QuTS hero h4.5.1.1491 build 20201119 and later
Status at the source
- NVD status: Analyzed
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| QNAP Systems Inc. | QTS | unspecified – before 4.5.2.1566 Build 20210202: affected unspecified – before 4.5.1.1495 Build 20201123: affected unspecified – before 4.3.6.1620 Build 20210322: affected unspecified – before 4.3.4.1632 Build 20210324: affected unspecified – before 4.3.3.1624 Build 20210416: affected unspecified – before 4.2.6 Build 20210327: affected |
| QNAP Systems Inc. | QuTS hero | unspecified – before h4.5.1.1491 build 20201119: 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: 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 3.1: 9.8 CRITICAL — as published by CISA-ADP (Secondary)
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 - SSVC — CISA's assessment (SSVC 2.0.3, CISA Coordinator): Exploitation: active · Automatable: yes · Technical impact: total
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-21-05
- https://www.qnap.com/en/security-advisory/qsa-21-05
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2509
Source dates: published 2021-04-17, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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