What is CVE-2018-19949?

CVE-2018-19949 is a critical-severity vulnerability in Qnap Qts, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2020-10-28.

How severe is CVE-2018-19949?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-19949 known to be exploited?

Yes. CVE-2018-19949 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-24), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.

RCE in Qnap Qts

CVE-2018-19949

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…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.244 (97.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Qnap Qts — versions 4.2.6
Qnap Systems Inc. Qts — versions unspecified

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-05-24. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-06-14.

Required action: Apply updates per vendor instructions.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

security@qnapsecurity.com.tw (x_refsource_MISC, Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2018-19949?: CVE-2018-19949 is a critical-severity vulnerability in Qnap Qts, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2020-10-28.
How severe is CVE-2018-19949?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-19949 known to be exploited?: Yes. CVE-2018-19949 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-24), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.