# CVE-2021-44596: Command injection in n/a

> An unauthenticated remote attacker can execute arbitrary code with SYSTEM privileges via UDP communication with the InstallAssistService.exe service.

- **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:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Apr 2022
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-524v-mfqh-4rrh

## What is CVE-2021-44596?

CVE-2021-44596 is a critical command injection vulnerability in n/a, published on 29 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Wondershare LTD Dr. Fone as of 2021-12-06 version is affected by Remote code execution. Due to software design flaws an unauthenticated user can communicate over UDP with the "InstallAssistService.exe" service(the service is running under SYSTEM privileges) and manipulate it to execute malicious executable without any validation from a remote location and gain SYSTEM privileges

## Which versions are affected by CVE-2021-44596?

It affects 1 product.


Products: Wondershare Dr.fone.

## How do I fix CVE-2021-44596?

No fix has been published for CVE-2021-44596 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-44596 being exploited?

There is no known exploitation of CVE-2021-44596 in the wild and no public exploit code.

Public exploit code:

- Wondershare Dr.Fone 12.0.7 - Remote Code Execution (RCE) (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2021-44595](https://insights.sbomify.com/CVE-2021-44595/): Missing authorization in n/a (high 8.8)
- [CVE-2022-50900](https://insights.sbomify.com/CVE-2022-50900/): Wondershare Dr.Fone 12.0.18 - 'Wondershare InstallAssist' Unquoted Service Path (high 8.5)
- [CVE-2022-50901](https://insights.sbomify.com/CVE-2022-50901/): Wondershare Dr.Fone 11.4.9 - 'DFWSIDService' Unquoted Service Path (high 8.5)
- [CVE-2023-29835](https://insights.sbomify.com/CVE-2023-29835/): Privilege escalation in n/a (high 7.8)
- [CVE-2023-27767](https://insights.sbomify.com/CVE-2023-27767/): Command injection in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-44596 and fix it if it is affected.

What it is: CVE-2021-44596 is a critical command injection vulnerability in n/a, published on 29 Apr 2022. 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-2021-44596 in the wild and no public exploit code.

Affected product: n/a. 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-2021-44596/ (Markdown: https://insights.sbomify.com/CVE-2021-44596/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-44596
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-44596
- OSV: https://osv.dev/vulnerability/CVE-2021-44596

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-44596/
Summaries are generated and may contain mistakes; the official description above is the record.