# CVE-2022-33637: Microsoft Defender for Endpoint Tampering Vulnerability

> Attackers can tamper with Microsoft Defender for Endpoint on Linux, bypassing security protections and potentially disabling monitoring.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C`)
- **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:** 12 Jul 2022
- **Updated:** 8 Jul 2025
- **Also known as:** GHSA-35wr-c9xh-h9cf

## What is CVE-2022-33637?

CVE-2022-33637 is a medium-severity vulnerability in Microsoft Defender for Endpoint for Linux, published on 12 Jul 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Microsoft Defender for Endpoint Tampering Vulnerability

## Which versions are affected by CVE-2022-33637?

It affects 1 product.


Products: Microsoft Defender for Endpoint.

## How do I fix CVE-2022-33637?

No fix has been published for CVE-2022-33637 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-33637 being exploited?

There is no known exploitation of CVE-2022-33637 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Defender for Endpoint for Linux

- [CVE-2026-21537](https://insights.sbomify.com/CVE-2026-21537/): Microsoft Defender for Endpoint Linux Extension Remote Code Execution Vulnerability (high 8.8)
- [CVE-2024-49057](https://insights.sbomify.com/CVE-2024-49057/): Microsoft Defender for Endpoint on Android Spoofing Vulnerability (high 8.1)
- [CVE-2025-47161](https://insights.sbomify.com/CVE-2025-47161/): Microsoft Defender for Endpoint Elevation of Privilege Vulnerability (high 7.8)
- [CVE-2024-21315](https://insights.sbomify.com/CVE-2024-21315/): Microsoft Defender for Endpoint Protection Elevation of Privilege Vulnerability (high 7.8)
- [CVE-2022-35828](https://insights.sbomify.com/CVE-2022-35828/): Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-33637 and fix it if it is affected.

What it is: CVE-2022-33637 is a medium-severity vulnerability in Microsoft Defender for Endpoint for Linux, published on 12 Jul 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-33637 in the wild and no public exploit code.

Affected product: Microsoft Defender for Endpoint for Linux. 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-2022-33637/ (Markdown: https://insights.sbomify.com/CVE-2022-33637/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-33637
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-33637
- OSV: https://osv.dev/vulnerability/CVE-2022-33637

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-33637/
Summaries are generated and may contain mistakes; the official description above is the record.