# CVE-2024-20137: Denial of service in MT6890, MT7622, MT7915, MT7916, MT7981, MT7986

> Remote attackers can cause client disconnection in MediaTek Wi-Fi drivers due to improper exception handling, resulting in denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Dec 2024
- **Updated:** 2 Dec 2024
- **Also known as:** GHSA-h3pq-wm2x-37wm

## What is CVE-2024-20137?

CVE-2024-20137 is a high-severity denial of service vulnerability in MediaTek, Inc. MT6890, MT7622, MT7915, MT7916, MT7981, MT7986, published on 2 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In wlan driver, there is a possible client disconnection due to improper handling of exceptional conditions. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00384543; Issue ID: MSV-1727.

Weakness: CWE-248 (Uncaught Exception)

## Which versions are affected by CVE-2024-20137?


## How do I fix CVE-2024-20137?

No fix has been published for CVE-2024-20137 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-20137 being exploited?

There is no known exploitation of CVE-2024-20137 in the wild and no public exploit code.

Public exploit code:

- Python code for expoiting of vulnerability in wlan driver of MediaTek SOCs MT6890, MT7622, MT7915, MT7916, MT7981, MT7986 (github_poc): https://github.com/takistmr/CVE-2024-20137

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-20137 and fix it if it is affected.

What it is: CVE-2024-20137 is a high-severity denial of service vulnerability in MediaTek, Inc. MT6890, MT7622, MT7915, MT7916, MT7981, MT7986, published on 2 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-20137 in the wild and no public exploit code.

Affected product: MediaTek, Inc. MT6890, MT7622, MT7915, MT7916, MT7981, MT7986. 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-2024-20137/ (Markdown: https://insights.sbomify.com/CVE-2024-20137/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-20137
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-20137
- OSV: https://osv.dev/vulnerability/CVE-2024-20137

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-20137/
Summaries are generated and may contain mistakes; the official description above is the record.