# CVE-2021-33113: Denial of service in Intel(R) PROSet/Wireless WiFi in multiple operating systems and Killer(TM) WiFi in Windows 10 and 11

> Unauthenticated adjacent attackers can cause denial of service or information disclosure in Intel and Killer WiFi drivers due to improper input validation.

- **Severity:** High 8.1 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Feb 2022
- **Updated:** 5 May 2025
- **Also known as:** GHSA-p3mc-4ph8-572m, UBUNTU-CVE-2021-33113

## What is CVE-2021-33113?

CVE-2021-33113 is a high-severity denial of service vulnerability in Intel(R) PROSet/Wireless WiFi in multiple operating systems and Killer(TM) WiFi in Windows 10 and 11, published on 9 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper input validation for some Intel(R) PROSet/Wireless WiFi in multiple operating systems and Killer(TM) WiFi in Windows 10 and 11 may allow an unauthenticated user to potentially enable denial of service or information disclosure via adjacent access.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2021-33113?

It affects 15 products.


Products: Intel Ac 1550 Firmware, Intel Ac 3165 Firmware, Intel Ac 3168 Firmware, Intel Ac 7265 Firmware, Intel Ac 8260 Firmware, Intel Ac 8265 Firmware, Intel Ac 9260 Firmware, Intel Ac 9461 Firmware, Intel Ac 9462 Firmware, Intel Ac 9560 Firmware, Intel Ax1650 Firmware, Intel Ax1675 Firmware, Intel Ax200 Firmware, Intel Ax201 Firmware, Intel Ax210 Firmware.

## How do I fix CVE-2021-33113?

No fix has been published for CVE-2021-33113 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-33113 being exploited?

There is no known exploitation of CVE-2021-33113 in the wild and no public exploit code.

## Other vulnerabilities in Intel(R) PROSet/Wireless WiFi in multiple operating systems and Killer(TM) WiFi in Windows 10 and 11

- [CVE-2021-33110](https://insights.sbomify.com/CVE-2021-33110/): Denial of service in Intel(R) Wireless Bluetooth(R) products and Killer(TM) Bluetooth(R) products in Windows 10 and 11 (medium 6.5)
- [CVE-2021-33114](https://insights.sbomify.com/CVE-2021-33114/): Denial of service in Intel(R) PROSet/Wireless WiFi in multiple operating systems and Killer(TM) WiFi in Windows 10 and 11 (medium 5.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-33113 and fix it if it is affected.

What it is: CVE-2021-33113 is a high-severity denial of service vulnerability in Intel(R) PROSet/Wireless WiFi in multiple operating systems and Killer(TM) WiFi in Windows 10 and 11, published on 9 Feb 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-2021-33113 in the wild and no public exploit code.

Affected product: Intel(R) PROSet/Wireless WiFi in multiple operating systems and Killer(TM) WiFi in Windows 10 and 11. 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-2021-33113/ (Markdown: https://insights.sbomify.com/CVE-2021-33113/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-33113
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-33113
- OSV: https://osv.dev/vulnerability/CVE-2021-33113

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-33113/
Summaries are generated and may contain mistakes; the official description above is the record.