CVE-2019-7193
CriticalExploitedPublic exploitThis improper input validation vulnerability allows remote attackers to inject arbitrary code to the system.
Published Dec 5, 2019 · Updated Oct 27, 2025
Key Facts
Patch immediately- CVE-2019-7193 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Qts (Qnap), QNAP NAS devices.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jan 26, 2022 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 14% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
14%
Higher than 96.5% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2019-7193 brief as a PDF
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Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Jun 8, 2022 | Jun 22, 2022 | Known |
| Industry KEV feed | Jan 26, 2022 | Jun 22, 2022 | Known |
| CIRCL KEV | Jun 8, 2022 | Jun 22, 2022 | Known |
| ENISA EUVD | Jun 8, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
17 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| QtsQnap | 4.3.6.0895, 4.3.6.0907, 4.3.6.0923, 4.3.6.0944, 4.3.6.0959, 4.3.6.0979, 4.3.6.0993, 4.3.6.1013 | n/a |
| QNAP NAS devices | >= QTS 4.4.0 - QTS 4.4.1: before build 20190918, QTS 4.3.6: before build 20190919 | n/a |
Timeline
Publicly disclosed
Dec 5, 2019
Added to Industry KEV feed
Jan 26, 2022
Added to CISA KEV
Jun 8, 2022
Added to CIRCL KEV
Jun 8, 2022
Added to ENISA EUVD
Jun 8, 2022
Last updated
Oct 27, 2025
Weakness Type
- CWE-20 Improper Input Validation
References
- advisoryhttps://www.qnap.com/zh-tw/security-advisory/nas-201911-25
- exploithttp://packetstormsecurity.com/files/157857/QNAP-QTS-And-Photo-Station-6.0.3-Remote-Command-Execution.html
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
This improper input validation vulnerability allows remote attackers to inject arbitrary code to the system.
Affected: Qts (Qnap) versions 4.3.6.0895, 4.3.6.0907, 4.3.6.0923, 4.3.6.0944, 4.3.6.0959, 4.3.6.0979, 4.3.6.0993, 4.3.6.1013; QNAP NAS devices versions >= QTS 4.4.0 - QTS 4.4.1: before build 20190918, QTS 4.3.6: before build 20190919. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jan 26, 2022 and is known to be used in ransomware campaigns.
Yes. It was added on Jun 8, 2022 with a federal remediation due date of Jun 22, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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