# CVE-2021-33068: Null dereference in Intel(R) AMT

> An authenticated user can cause a denial of service in Intel AMT firmware via a null pointer dereference.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **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:** 9 Feb 2022
- **Updated:** 5 May 2025
- **Also known as:** GHSA-95jg-586g-68w9

## What is CVE-2021-33068?

CVE-2021-33068 is a medium-severity vulnerability in Intel Active Management Technology Firmware, published on 9 Feb 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Null pointer dereference in subsystem for Intel(R) AMT before versions 15.0.35 may allow an authenticated user to potentially enable denial of service via network access.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2021-33068?

It affects 2 products.


Products: Intel Active Management Technology Firmware, Netapp Cloud Backup.

## How do I fix CVE-2021-33068?

No fix has been published for CVE-2021-33068 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-33068 being exploited?

There is no known exploitation of CVE-2021-33068 in the wild and no public exploit code.

## Other vulnerabilities in Intel Active Management Technology Firmware

- [CVE-2022-30601](https://insights.sbomify.com/CVE-2022-30601/): Hardcoded credentials in Intel(R) AMT and Intel(R) Standard Manageability (critical 9.8)
- [CVE-2020-8752](https://insights.sbomify.com/CVE-2020-8752/): Memory corruption in Intel(R) AMT, Intel(R) ISM versions (critical 9.8)
- [CVE-2020-8758](https://insights.sbomify.com/CVE-2020-8758/): Memory corruption in Intel(R) AMT and Intel(R) ISM (critical 9.8)
- [CVE-2020-0594](https://insights.sbomify.com/CVE-2020-0594/): Memory corruption in Intel(R) AMT and Intel(R) ISM (critical 9.8)
- [CVE-2020-0595](https://insights.sbomify.com/CVE-2020-0595/): Use after free in Intel(R) AMT and Intel(R) ISM (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-33068 and fix it if it is affected.

What it is: CVE-2021-33068 is a medium-severity vulnerability in Intel Active Management Technology Firmware, published on 9 Feb 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-2021-33068 in the wild and no public exploit code.

Affected product: Intel Active Management Technology Firmware. 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-2021-33068/ (Markdown: https://insights.sbomify.com/CVE-2021-33068/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-33068
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-33068
- OSV: https://osv.dev/vulnerability/CVE-2021-33068

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-33068/
Summaries are generated and may contain mistakes; the official description above is the record.