# CVE-2021-33117: Information disclosure in Intel(R) Xeon(R) Scalable Processors

> A local attacker can exploit improper access control in Intel Xeon Scalable Processors to disclose sensitive information.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 12 May 2022
- **Updated:** 5 May 2025
- **Also known as:** DEBIAN-CVE-2021-33117, GHSA-fmf3-xj8j-qrw9, UBUNTU-CVE-2021-33117

## What is CVE-2021-33117?

CVE-2021-33117 is a medium-severity vulnerability in Intel(R) Xeon(R) Scalable Processors, published on 12 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper access control for some 3rd Generation Intel(R) Xeon(R) Scalable Processors before BIOS version MR7, may allow a local attacker to potentially enable information disclosure via local access.

## Which versions are affected by CVE-2021-33117?

It affects 2 products.


Products: Intel Bios, Netapp Fas\/Aff Bios.

## How do I fix CVE-2021-33117?

Apply the vendor's patch.

## Is CVE-2021-33117 being exploited?

There is no known exploitation of CVE-2021-33117 in the wild and no public exploit code.

## Other vulnerabilities in Intel(R) Xeon(R) Scalable Processors

- [CVE-2019-14557](https://insights.sbomify.com/CVE-2019-14557/): Memory corruption in Intel BIOS (high 8.0)
- [CVE-2020-12360](https://insights.sbomify.com/CVE-2020-12360/): Memory corruption in Intel(R) Processors (high 7.8)
- [CVE-2020-8672](https://insights.sbomify.com/CVE-2020-8672/): Memory corruption in Intel BIOS Advisory (high 7.8)
- [CVE-2020-8739](https://insights.sbomify.com/CVE-2020-8739/): Privilege escalation in Intel BIOS platform sample code for some Intel(R) Processors (high 7.8)
- [CVE-2008-7096](https://insights.sbomify.com/CVE-2008-7096/): Privilege escalation in n/a (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-33117 and fix it if it is affected.

What it is: CVE-2021-33117 is a medium-severity vulnerability in Intel(R) Xeon(R) Scalable Processors, published on 12 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-33117 in the wild and no public exploit code.

Affected product: Intel(R) Xeon(R) Scalable Processors. 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-2021-33117/ (Markdown: https://insights.sbomify.com/CVE-2021-33117/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-33117
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-33117
- OSV: https://osv.dev/vulnerability/CVE-2021-33117

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-33117/
Summaries are generated and may contain mistakes; the official description above is the record.