# CVE-2025-11837: Malware Remover

> Remote attackers can exploit improper code generation to bypass protection mechanisms in QNAP Malware Remover.

- **Severity:** High 8.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Jan 2026
- **Updated:** 5 Jan 2026
- **Also known as:** GHSA-92w4-hf76-4gwf

## What is CVE-2025-11837?

CVE-2025-11837 is a high-severity code injection vulnerability in QNAP Systems Inc. Malware Remover, published on 2 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An improper control of generation of code vulnerability has been reported to affect Malware Remover. The remote attackers can then exploit the vulnerability to bypass protection mechanism.

We have already fixed the vulnerability in the following version:
Malware Remover 6.6.8.20251023 and later

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2025-11837?

It affects 1 product.


Products: Qnap Malware Remover.

## How do I fix CVE-2025-11837?

No fix has been published for CVE-2025-11837 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-11837 being exploited?

There is no known exploitation of CVE-2025-11837 in the wild and no public exploit code.

## Other vulnerabilities in QNAP Systems Inc. Malware Remover

- [CVE-2020-36198](https://insights.sbomify.com/CVE-2020-36198/): Command Injection Vulnerability in Malware Remover (medium 6.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-11837 and fix it if it is affected.

What it is: CVE-2025-11837 is a high-severity code injection vulnerability in QNAP Systems Inc. Malware Remover, published on 2 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-11837 in the wild and no public exploit code.

Affected product: QNAP Systems Inc. Malware Remover. 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-2025-11837/ (Markdown: https://insights.sbomify.com/CVE-2025-11837/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-11837
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-11837
- OSV: https://osv.dev/vulnerability/CVE-2025-11837

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-11837/
Summaries are generated and may contain mistakes; the official description above is the record.