# CVE-2023-23355: QTS, QuTS hero, QuTScloud, QVP (QVR Pro appliances), QVR

> Remote authenticated administrators can execute arbitrary OS commands on QNAP operating systems due to improper neutralization of special elements.

- **Severity:** Medium 6.6 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Mar 2023
- **Updated:** 12 Feb 2025
- **Also known as:** GHSA-vf28-x3q6-9qg2

## What is CVE-2023-23355?

CVE-2023-23355 is a medium-severity command injection vulnerability in Qnap Qts, published on 29 Mar 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

An OS command injection vulnerability has been reported to affect QNAP operating systems. If exploited, the vulnerability possibly allows remote authenticated administrators to execute commands via unspecified vectors.
QES is not affected.

We have already fixed the vulnerability in the following versions:
QTS 5.0.1.2346 build 20230322 and later
QTS 4.5.4.2374 build 20230416 and later
QuTS hero h5.0.1.2348 build 20230324 and later
QuTS hero h4.5.4.2374 build 20230417 and later
QuTScloud c5.0.1.2374 and later

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2023-23355?

It affects 11 products.


Products: Qnap Qts, Qnap Quts Hero, Qnap Qutscloud, Qnap Qvp-21a Firmware, Qnap Qvp-41a Firmware, Qnap Qvp-41b Firmware, Qnap Qvp-63a Firmware, Qnap Qvp-63b Firmware, Qnap Qvp-85a Firmware, Qnap Qvp-85b Firmware, Qnap Qvr.

## How do I fix CVE-2023-23355?

No fix has been published for CVE-2023-23355 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-23355 being exploited?

There is no known exploitation of CVE-2023-23355 in the wild and no public exploit code.

## 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-2019-7193](https://insights.sbomify.com/CVE-2019-7193/): QNAP QTS Improper Input Validation (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)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-23355 and fix it if it is affected.

What it is: CVE-2023-23355 is a medium-severity command injection vulnerability in Qnap Qts, published on 29 Mar 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-23355 in the wild and no public exploit code.

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-2023-23355/ (Markdown: https://insights.sbomify.com/CVE-2023-23355/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-23355
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-23355
- OSV: https://osv.dev/vulnerability/CVE-2023-23355

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-23355/
Summaries are generated and may contain mistakes; the official description above is the record.