Is CVE-2018-19949 in the CISA KEV catalog?

Yes. CVE-2018-19949 is on the CISA Known Exploited Vulnerabilities list, added 2022-05-24, and has known ransomware campaign use.

What is the CVSS severity of CVE-2018-19949?

CVE-2018-19949 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2018-19949?

CVE-2018-19949 has an EPSS score of 24.45% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2018-19949

CRITICALCISA KEVEPSS 98th pctl

9.8

CVSS v3

NVD

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.

CWE-20Improper Input Validation CWE-77Command Injection CWE-78OS Command Injection

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

24.45%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

QNAP NAS File Station Command Injection Vulnerability

A command injection vulnerability affecting QNAP NAS File Station could allow remote attackers to run commands.

Apply updates per vendor instructions.

Remediation due: 2022-06-14

Associated with ransomware campaigns

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.