# CVE-2021-21533: Denial of service in Wyse Management Suite

> A malicious authenticated user can cause a denial of service in the job status retrieval page, affecting other users' access to job details.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Apr 2021
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-5662-2q2g-p5f9

## What is CVE-2021-21533?

CVE-2021-21533 is a medium-severity denial of service vulnerability in Dell Wyse Management Suite, published on 2 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Wyse Management Suite versions up to 3.2 contains a vulnerability wherein a malicious authenticated user can cause a denial of service in the job status retrieval page, also affecting other users that would have normally access to the same subset of job details

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2021-21533?

It affects 1 product.


Products: Dell Wyse Management Suite.

## How do I fix CVE-2021-21533?

No fix has been published for CVE-2021-21533 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-21533 being exploited?

There is no known exploitation of CVE-2021-21533 in the wild and no public exploit code.

## Other vulnerabilities in Dell Wyse Management Suite

- [CVE-2026-41120](https://insights.sbomify.com/CVE-2026-41120/): Deserialization in Wyse Management Suite (critical 9.8)
- [CVE-2021-36336](https://insights.sbomify.com/CVE-2021-36336/): Deserialization in Wyse Management Suite (critical 9.8)
- [CVE-2026-44272](https://insights.sbomify.com/CVE-2026-44272/): SQL injection in Wyse Management Suite (WMS) (high 8.8)
- [CVE-2026-22765](https://insights.sbomify.com/CVE-2026-22765/): Missing authorization in Wyse Management Suite (high 8.8)
- [CVE-2022-46754](https://insights.sbomify.com/CVE-2022-46754/): Missing authorization in Wyse Management Suite (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-21533 and fix it if it is affected.

What it is: CVE-2021-21533 is a medium-severity denial of service vulnerability in Dell Wyse Management Suite, published on 2 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-21533 in the wild and no public exploit code.

Affected product: Dell Wyse Management Suite. 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-2021-21533/ (Markdown: https://insights.sbomify.com/CVE-2021-21533/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-21533
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-21533
- OSV: https://osv.dev/vulnerability/CVE-2021-21533

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-21533/
Summaries are generated and may contain mistakes; the official description above is the record.