# CVE-2019-7193: QNAP QTS Improper Input Validation

> Remote attackers can inject arbitrary code into QNAP NAS devices due to improper input validation, requiring an OS update to mitigate.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Yes, since 8 Jun 2022 (CISA KEV), used in ransomware
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Dec 2019
- **Updated:** 21 Oct 2025
- **Also known as:** GHSA-964w-hfj4-c2g7

## What is CVE-2019-7193?

CVE-2019-7193 is a critical code injection vulnerability in Qnap Qts, published on 5 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2019-7193?

It affects 1 product.


Products: Qnap Qts.

## How do I fix CVE-2019-7193?

No fix has been published for CVE-2019-7193 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 22 Jun 2022.

## Is CVE-2019-7193 being exploited?

Yes. Attackers have exploited CVE-2019-7193 in the wild since at least 8 Jun 2022, including in ransomware campaigns.

## Other vulnerabilities in Qnap Qts

- [CVE-2020-2509](https://insights.sbomify.com/CVE-2020-2509/): QNAP Network-Attached Storage (NAS) Command Injection (critical 9.8, exploited in the wild)
- [CVE-2018-19949](https://insights.sbomify.com/CVE-2018-19949/): QNAP NAS File Station Command Injection (critical 9.8, exploited in the wild)
- [CVE-2018-19943](https://insights.sbomify.com/CVE-2018-19943/): QNAP NAS File Station Cross-Site Scripting (high 8.0, exploited in the wild)
- [CVE-2018-19953](https://insights.sbomify.com/CVE-2018-19953/): QNAP NAS File Station Cross-Site Scripting (medium 6.1, exploited in the wild)
- [CVE-2024-32766](https://insights.sbomify.com/CVE-2024-32766/): QTS, QuTS hero, QuTScloud (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-7193 and fix it if it is affected.

What it is: CVE-2019-7193 is a critical code injection vulnerability in Qnap Qts, published on 5 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2019-7193 in the wild since at least 8 Jun 2022, including in ransomware campaigns.

Affected product: Qnap Qts. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2019-7193/ (Markdown: https://insights.sbomify.com/CVE-2019-7193/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-7193
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-7193
- OSV: https://osv.dev/vulnerability/CVE-2019-7193

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-7193/
Summaries are generated and may contain mistakes; the official description above is the record.