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Qts CVE-2019-7193

CRITICAL
Improper Input Validation (CWE-20)
2019-12-05 security@qnapsecurity.com.tw
9.8
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Act Now Prioritize within 24-48h. Why: CRITICAL + in CISA KEV (actively exploited), no patch available.
Exploited in the wild (CISA KEV) No patch listed yet 14.4% exploitation probability (EPSS)

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AnalysisAI

This improper input validation vulnerability allows remote attackers to inject arbitrary code to the system. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-20. This improper input validation vulnerability allows remote attackers to inject arbitrary code to the system. To fix the vulnerability, QNAP recommend updating QTS to their latest versions. Affected products include: Qnap Qts.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Added to CISA KEV
Jul 14, 2026 - 04:22 CISA
CVE Published
Dec 05, 2019 - 17:15 nvd
CRITICAL 9.8

DescriptionNVD

This improper input validation vulnerability allows remote attackers to inject arbitrary code to the system. To fix the vulnerability, QNAP recommend updating QTS to their latest versions.

Threat Intelligence Overview

EPSS Score
14.4%
Top 4% exploitable
Exploit
POC
Public exploit code exists
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV Yes
Public POC Yes
EPSS 14.4%
Patch available No
Active threat Yes
Deciding rule
CRITICAL + in CISA KEV (actively exploited), no patch available
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Immediate
Exploitation· derived
Active
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
High

Priority Score

133
Low Medium High Critical
KEV: +50
EPSS: +14
CVSS: +49
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:o:qnap:qts:4.3.6.0895:-:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.6.0907:-:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.6.0923:-:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.6.0944:-:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.6.0959:-:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.6.0979:-:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.6.0993:-:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.6.1013:-:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.6.1033:-:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.4.1.0948:beta:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.4.1.0949:beta:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.4.1.0978:beta_2:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.4.1.0998:beta_3:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.4.1.0999:beta_3:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.4.1.1031:beta_4:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.4.1.1033:beta_4:*:*:*:*:*:*

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