# CVE-2022-21198: Race condition in Intel(R) Processors

> A race condition in Intel Processor BIOS allows privileged local users to escalate privileges.

- **Severity:** High 7.9 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Nov 2022
- **Updated:** 11 Aug 2026
- **Also known as:** GHSA-hjmc-mw59-wqqp

## What is CVE-2022-21198?

CVE-2022-21198 is a high-severity vulnerability in Intel(R) Processors, published on 11 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Time-of-check time-of-use race condition in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

Weakness: CWE-367 (Time-of-check Time-of-use (TOCTOU) Race Condition)

## Which versions are affected by CVE-2022-21198?

It affects 447 products.


Products: Intel Celeron 1000m Firmware, Intel Celeron 1005m Firmware, Intel Celeron 1007u Firmware, Intel Celeron 1017u Firmware, Intel Celeron 1019y Firmware, Intel Celeron 1020e Firmware, Intel Celeron 1020m Firmware, Intel Celeron 1037u Firmware, Intel Celeron 1047ue Firmware, Intel Celeron 2955u Firmware, Intel Celeron 2957u Firmware, Intel Celeron 2970m Firmware, Intel Celeron 2980u Firmware, Intel Celeron 2981u Firmware, Intel Celeron 3755u Firmware, Intel Celeron 3765u Firmware, Intel Celeron 3855u Firmware, Intel Celeron 3865u Firmware, Intel Celeron 3867u Firmware, Intel Celeron 3955u Firmware and 427 more.

## How do I fix CVE-2022-21198?

No fix has been published for CVE-2022-21198 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-21198 being exploited?

There is no known exploitation of CVE-2022-21198 in the wild and no public exploit code.

## Other vulnerabilities in Intel(R) Processors

- [CVE-2022-30704](https://insights.sbomify.com/CVE-2022-30704/): Privilege escalation in Intel(R) Processors (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-21198 and fix it if it is affected.

What it is: CVE-2022-21198 is a high-severity vulnerability in Intel(R) Processors, published on 11 Nov 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-2022-21198 in the wild and no public exploit code.

Affected product: Intel(R) 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-2022-21198/ (Markdown: https://insights.sbomify.com/CVE-2022-21198/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-21198
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-21198
- OSV: https://osv.dev/vulnerability/CVE-2022-21198

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-21198/
Summaries are generated and may contain mistakes; the official description above is the record.