How severe is CVE-2018-19949?

CVE-2018-19949 has a CVSS 3.1 base score of 9.8 (CRITICAL). EPSS estimates a 28.4% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2018-19949: QNAP NAS File Station Command Injection

CISA Known Exploited Vulnerabilities

QNAP NAS File Station Command Injection Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-05-24

Remediation due

2022-06-14

Ransomware

Known use

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2018-19949

Description

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.

Severity

CVSS 3.1 · CISA9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
QNAP Systems Inc.	QTS	unspecified to <4.4.2.1231
QNAP Systems Inc.	QTS	unspecified to <4.4.1.1201
QNAP Systems Inc.	QTS	unspecified to <4.3.6.1218
QNAP Systems Inc.	QTS	unspecified to <4.3.4.1190
QNAP Systems Inc.	QTS	unspecified to <4.3.3.1161 unspecified to <4.2.6

References

1 Links

Other references

https://www.qnap.com/zh-tw/security-advisory/qsa-20-01

Record Details

Published

2020-10-28

Last updated

2026-10-01

Assigner (CNA)

qnap

Credited to

Independent Security Evaluators

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Related Tool Categories

Tool categories that test for or protect against this vulnerability class.

CWE-20 · Improper Input Validation

Application Security Tools Fuzzing

CWE-77 · Command Injection

Application Security Tools Penetration Testing Tools

CWE-78 · OS Command Injection

Application Security Tools Penetration Testing Tools

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.