# CVE-2022-26529: Realtek Linux/Android Bluetooth Mesh SDK - Buffer Overflow

> An unauthenticated adjacent attacker can cause a buffer overflow in the Realtek Bluetooth Mesh SDK, leading to service disruption.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:A/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Aug 2022
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-f34r-99x7-mp7j

## What is CVE-2022-26529?

CVE-2022-26529 is a medium-severity memory corruption vulnerability in Realtek Linux/Android Bluetooth Mesh SDK, published on 30 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Realtek Linux/Android Bluetooth Mesh SDK has a buffer overflow vulnerability due to insufficient validation for segmented packets’ link parameter. An unauthenticated attacker in the adjacent network can exploit this vulnerability to cause buffer overflow and disrupt service.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2022-26529?

It affects 1 product.


Products: Realtek Bluetooth Mesh Software Development Kit.

## How do I fix CVE-2022-26529?

No fix has been published for CVE-2022-26529 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-26529 being exploited?

There is no known exploitation of CVE-2022-26529 in the wild and no public exploit code.

## Other vulnerabilities in Realtek Linux/Android Bluetooth Mesh SDK

- [CVE-2022-25635](https://insights.sbomify.com/CVE-2022-25635/): Realtek Linux/Android Bluetooth Mesh SDK - Buffer Overflow (medium 6.5)
- [CVE-2022-26527](https://insights.sbomify.com/CVE-2022-26527/): Realtek Linux/Android Bluetooth Mesh SDK - Buffer Overflow (medium 6.5)
- [CVE-2022-26528](https://insights.sbomify.com/CVE-2022-26528/): Realtek Linux/Android Bluetooth Mesh SDK - Buffer Overflow (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-26529 and fix it if it is affected.

What it is: CVE-2022-26529 is a medium-severity memory corruption vulnerability in Realtek Linux/Android Bluetooth Mesh SDK, published on 30 Aug 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-2022-26529 in the wild and no public exploit code.

Affected product: Realtek Linux/Android Bluetooth Mesh SDK. 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-2022-26529/ (Markdown: https://insights.sbomify.com/CVE-2022-26529/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-26529
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-26529
- OSV: https://osv.dev/vulnerability/CVE-2022-26529

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-26529/
Summaries are generated and may contain mistakes; the official description above is the record.