CVE-2018-19949 (GCVE-0-2018-19949)
Vulnerability from cvelistv5 – Published: 2020-10-28 17:55 – Updated: 2026-10-02 03:55
VLAI
EPSS
VEX
Summary
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
9.8 (Critical)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2022-06-01 00:00 UTC
CWE
Assigner
qnap
CNA
References
2 references
| URL | Tags |
|---|---|
| https://www.qnap.com/zh-tw/security-advisory/qsa-20-01 | x_refsource_MISC |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | QTS |
Affected:
unspecified , < 4.4.2.1231
(custom)
|
|
| QNAP Systems Inc. | QTS |
Affected:
unspecified , < 4.4.1.1201
(custom)
|
|
| QNAP Systems Inc. | QTS |
Affected:
unspecified , < 4.3.6.1218
(custom)
|
|
| QNAP Systems Inc. | QTS |
Affected:
unspecified , < 4.3.4.1190
(custom)
|
|
| QNAP Systems Inc. | QTS |
Affected:
unspecified , < 4.3.3.1161
(custom)
Affected: unspecified , < 4.2.6 (custom) |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-05T11:51:17.944Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-01"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2018-19949",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2022-06-01T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2022-05-24",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-19949"
},
"type": "kev"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-02T03:55:14.588Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-19949"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"platforms": [
"build 20200302"
],
"product": "QTS",
"vendor": "QNAP Systems Inc.",
"versions": [
{
"lessThan": "4.4.2.1231",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"platforms": [
"build 20200130"
],
"product": "QTS",
"vendor": "QNAP Systems Inc.",
"versions": [
{
"lessThan": "4.4.1.1201",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"platforms": [
"build 20200214"
],
"product": "QTS",
"vendor": "QNAP Systems Inc.",
"versions": [
{
"lessThan": "4.3.6.1218",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"platforms": [
"build 20200107"
],
"product": "QTS",
"vendor": "QNAP Systems Inc.",
"versions": [
{
"lessThan": "4.3.4.1190",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"platforms": [
"build 20200109"
],
"product": "QTS",
"vendor": "QNAP Systems Inc.",
"versions": [
{
"lessThan": "4.3.3.1161",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
},
{
"lessThan": "4.2.6",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Independent Security Evaluators"
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"description": "CWE-20 Improper Input Validation",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-77",
"description": "CWE-77 Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-78",
"description": "CWE-78 OS Command Injection",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2020-10-28T17:55:18.000Z",
"orgId": "2fd009eb-170a-4625-932b-17a53af1051f",
"shortName": "qnap"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-01"
}
],
"source": {
"discovery": "EXTERNAL"
},
"x_generator": {
"engine": "Vulnogram 0.0.9"
},
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "security@qnap.com",
"ID": "CVE-2018-19949",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "QTS",
"version": {
"version_data": [
{
"platform": "build 20200302",
"version_affected": "\u003c",
"version_value": "4.4.2.1231"
},
{
"platform": "build 20200130",
"version_affected": "\u003c",
"version_value": "4.4.1.1201"
},
{
"platform": "build 20200214",
"version_affected": "\u003c",
"version_value": "4.3.6.1218"
},
{
"platform": "build 20200107",
"version_affected": "\u003c",
"version_value": "4.3.4.1190"
},
{
"platform": "build 20200109",
"version_affected": "\u003c",
"version_value": "4.3.3.1161"
},
{
"platform": "build 20200109",
"version_affected": "\u003c",
"version_value": "4.2.6"
}
]
}
}
]
},
"vendor_name": "QNAP Systems Inc."
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Independent Security Evaluators"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "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."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-20 Improper Input Validation"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "CWE-77 Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "CWE-78 OS Command Injection"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-01",
"refsource": "MISC",
"url": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-01"
}
]
},
"source": {
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "2fd009eb-170a-4625-932b-17a53af1051f",
"assignerShortName": "qnap",
"cveId": "CVE-2018-19949",
"datePublished": "2020-10-28T17:55:18.000Z",
"dateReserved": "2018-12-07T00:00:00.000Z",
"dateUpdated": "2026-10-02T03:55:14.588Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"cisa_known_exploited": {
"cveID": "CVE-2018-19949",
"cwes": [
"CWE-20",
"CWE-77",
"CWE-78"
],
"dateAdded": "2022-05-24",
"dueDate": "2022-06-14",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Known",
"notes": "https://nvd.nist.gov/vuln/detail/CVE-2018-19949",
"product": "Network Attached Storage (NAS)",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "A command injection vulnerability affecting QNAP NAS File Station could allow remote attackers to run commands.",
"vendorProject": "QNAP",
"vulnerabilityName": "QNAP NAS File Station Command Injection Vulnerability"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-05T11:51:17.944Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-01"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2018-19949",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-01T19:31:14.611633Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2022-05-24",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-19949"
},
"type": "kev"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-02-06T20:45:08.764Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-19949"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"platforms": [
"build 20200302"
],
"product": "QTS",
"vendor": "QNAP Systems Inc.",
"versions": [
{
"lessThan": "4.4.2.1231",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"platforms": [
"build 20200130"
],
"product": "QTS",
"vendor": "QNAP Systems Inc.",
"versions": [
{
"lessThan": "4.4.1.1201",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"platforms": [
"build 20200214"
],
"product": "QTS",
"vendor": "QNAP Systems Inc.",
"versions": [
{
"lessThan": "4.3.6.1218",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"platforms": [
"build 20200107"
],
"product": "QTS",
"vendor": "QNAP Systems Inc.",
"versions": [
{
"lessThan": "4.3.4.1190",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"platforms": [
"build 20200109"
],
"product": "QTS",
"vendor": "QNAP Systems Inc.",
"versions": [
{
"lessThan": "4.3.3.1161",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
},
{
"lessThan": "4.2.6",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Independent Security Evaluators"
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"description": "CWE-20 Improper Input Validation",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-77",
"description": "CWE-77 Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-78",
"description": "CWE-78 OS Command Injection",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2020-10-28T17:55:18.000Z",
"orgId": "2fd009eb-170a-4625-932b-17a53af1051f",
"shortName": "qnap"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-01"
}
],
"source": {
"discovery": "EXTERNAL"
},
"x_generator": {
"engine": "Vulnogram 0.0.9"
},
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "security@qnap.com",
"ID": "CVE-2018-19949",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "QTS",
"version": {
"version_data": [
{
"platform": "build 20200302",
"version_affected": "\u003c",
"version_value": "4.4.2.1231"
},
{
"platform": "build 20200130",
"version_affected": "\u003c",
"version_value": "4.4.1.1201"
},
{
"platform": "build 20200214",
"version_affected": "\u003c",
"version_value": "4.3.6.1218"
},
{
"platform": "build 20200107",
"version_affected": "\u003c",
"version_value": "4.3.4.1190"
},
{
"platform": "build 20200109",
"version_affected": "\u003c",
"version_value": "4.3.3.1161"
},
{
"platform": "build 20200109",
"version_affected": "\u003c",
"version_value": "4.2.6"
}
]
}
}
]
},
"vendor_name": "QNAP Systems Inc."
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Independent Security Evaluators"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "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."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-20 Improper Input Validation"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "CWE-77 Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "CWE-78 OS Command Injection"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-01",
"refsource": "MISC",
"url": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-01"
}
]
},
"source": {
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "2fd009eb-170a-4625-932b-17a53af1051f",
"assignerShortName": "qnap",
"cveId": "CVE-2018-19949",
"datePublished": "2020-10-28T17:55:18.000Z",
"dateReserved": "2018-12-07T00:00:00.000Z",
"dateUpdated": "2026-10-02T03:55:14.588Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.