# CVE-2021-36313: Command injection in CloudLink

> A remote high-privileged attacker can execute arbitrary OS commands on Dell EMC CloudLink, potentially leading to full system takeover.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Nov 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-wm6p-qp26-2h9v

## What is CVE-2021-36313?

CVE-2021-36313 is a critical command injection vulnerability in Dell CloudLink, published on 23 Nov 2021. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Dell EMC CloudLink 7.1 and all prior versions contain an OS command injection Vulnerability. A remote high privileged attacker, may potentially exploit this vulnerability, leading to the execution of arbitrary OS commands on the application's underlying OS, with the privileges of the vulnerable application. Exploitation may lead to a system take over by an attacker. This vulnerability is considered critical as it may be leveraged to completely compromise the vulnerable application as well as the underlying operating system. Dell recommends customers to upgrade at the earliest opportunity.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2021-36313?

It affects 1 product.


Products: Dell Cloudlink.

## How do I fix CVE-2021-36313?

No fix has been published for CVE-2021-36313 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-36313 being exploited?

There is no known exploitation of CVE-2021-36313 in the wild and no public exploit code.

## Other vulnerabilities in Dell CloudLink

- [CVE-2022-34379](https://insights.sbomify.com/CVE-2022-34379/): Auth bypass in CloudLink (critical 9.4)
- [CVE-2022-34380](https://insights.sbomify.com/CVE-2022-34380/): Auth bypass in CloudLink (critical 9.3)
- [CVE-2025-45378](https://insights.sbomify.com/CVE-2025-45378/): Command injection in CloudLink (critical 9.1)
- [CVE-2025-46364](https://insights.sbomify.com/CVE-2025-46364/): Privilege escalation in CloudLin (critical 9.1)
- [CVE-2021-36312](https://insights.sbomify.com/CVE-2021-36312/): Hardcoded credentials in CloudLink (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-36313 and fix it if it is affected.

What it is: CVE-2021-36313 is a critical command injection vulnerability in Dell CloudLink, published on 23 Nov 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-36313 in the wild and no public exploit code.

Affected product: Dell CloudLink. 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-2021-36313/ (Markdown: https://insights.sbomify.com/CVE-2021-36313/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-36313
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-36313
- OSV: https://osv.dev/vulnerability/CVE-2021-36313

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-36313/
Summaries are generated and may contain mistakes; the official description above is the record.