CVE-2018-19949
QNAP · published 2020-10-28
Source record Collected from the National Vulnerability Database (NVD)
CISA Known Exploited Vulnerabilities
CISA lists this CVE as known exploited (added 2022-05-24).
- CISA's name for it: QNAP NAS File Station Command Injection Vulnerability
- CISA's description: A command injection vulnerability affecting QNAP NAS File Station could allow remote attackers to run commands.
- Known ransomware campaign use, per CISA: Known
Source: CISA KEV catalog (CC0 1.0).
Description
Description by QNAP Systems, Inc. via the CVE Program.
If exploited, this command injection vulnerability could allow remote attackers to run arbitrary commands. QNAP has already fixed the issue in the following QTS versions. QTS 4.4.2.1231 on build 20200302; QTS 4.4.1.1201 on build 20200130; QTS 4.3.6.1218 on build 20200214; QTS 4.3.4.1190 on build 20200107; QTS 4.3.3.1161 on build 20200109; QTS 4.2.6 on build 20200109.
Status at the source
- NVD status: Analyzed
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| QNAP Systems Inc. | QTS | unspecified – before 4.4.2.1231: affected |
| QNAP Systems Inc. | QTS | unspecified – before 4.4.1.1201: affected |
| QNAP Systems Inc. | QTS | unspecified – before 4.3.6.1218: affected |
| QNAP Systems Inc. | QTS | unspecified – before 4.3.4.1190: affected |
| QNAP Systems Inc. | QTS | unspecified – before 4.3.3.1161: affected unspecified – before 4.2.6: affected |
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: 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/zh-tw/security-advisory/qsa-20-01
- https://www.qnap.com/zh-tw/security-advisory/qsa-20-01
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-19949
Source dates: published 2020-10-28, last changed 2026-10-02. DeSpy's copy of this version is dated 2026-10-02.
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