CVE-2018-19949

highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.302 · 98 %ileEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV

Likely / severe?

30.2% (98th) EPSS

CVSS 7.5 · high

Is it mine?

25 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

added 2022-05-24remediate by 2022-06-14

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-27

QNAP NAS File Station Command Injection Vulnerability

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-77USprimaryCWE-20USCWE-77USCWE-78US

affected products (25)

Products and version ranges known to be affected.

QNAP Systems Inc. QTSunspecified → 4.2.6enisa_euvdEU
QNAP Systems Inc. QTSunspecified → 4.3.3.1161enisa_euvdEU
QNAP Systems Inc. QTSunspecified → 4.3.4.1190enisa_euvdEU
QNAP Systems Inc. QTSunspecified → 4.3.6.1218enisa_euvdEU
QNAP Systems Inc. QTSunspecified → 4.4.1.1201enisa_euvdEU
QNAP Systems Inc. QTSunspecified → 4.4.2.1231enisa_euvdEU
QNAP Systems, Inc. QTS≤ 4.2.6build 20191107fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20190921fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20190730fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20190322fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20170517fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6-fstec_bduRU
QNAP Systems, Inc. QTS4.3.1.0013 → 4.3.3.1161fstec_bduRU
QNAP Systems, Inc. QTS4.3.4 → 4.3.4.1190fstec_bduRU
QNAP Systems, Inc. QTS4.3.6 → 4.3.6.1218fstec_bduRU
QNAP Systems, Inc. QTS4.4.0 → 4.4.1.1201fstec_bduRU
QNAP Systems, Inc. QTS4.4.2 → 4.4.2.1231fstec_bduRU
qnap qts< 4.2.6nvdUScpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
qnap qts= 4.2.6nvdUScpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*

showing 20 of 25

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2020-10-28modified 2026-08-13

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+4594 more

references (6)

External citations — patches, advisories, analysis.

scry

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