# CVE-2024-38403: Buffer Over-read in WLAN Firmware

> A buffer over-read in Qualcomm Snapdragon WLAN firmware allows transient denial of service when parsing specific information elements.

- **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:** 4 Nov 2024
- **Updated:** 4 Nov 2024
- **Also known as:** GHSA-49j5-25jj-6293

## What is CVE-2024-38403?

CVE-2024-38403 is a high-severity denial of service vulnerability in Qualcomm Ar8035 Firmware, published on 4 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Transient DOS while parsing BTM ML IE when per STA profile is not included.

Weakness: CWE-125 (Out-of-bounds Read), CWE-126 (Buffer Over-read)

## Which versions are affected by CVE-2024-38403?

It affects 78 products.


Products: Qualcomm Ar8035 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qam8255p Firmware, Qualcomm Qam8650p Firmware, Qualcomm Qam8775p Firmware, Qualcomm Qca6554a Firmware, Qualcomm Qca6564au Firmware, Qualcomm Qca6574 Firmware, Qualcomm Qca6574a Firmware, Qualcomm Qca6574au Firmware, Qualcomm Qca6584au Firmware, Qualcomm Qca6595 Firmware, Qualcomm Qca6595au Firmware, Qualcomm Qca6696 Firmware, Qualcomm Qca6698aq Firmware, Qualcomm Qca6777aq Firmware, Qualcomm Qca6787aq Firmware, Qualcomm Qca6797aq Firmware, Qualcomm Qca8081 Firmware and 58 more.

## How do I fix CVE-2024-38403?

No fix has been published for CVE-2024-38403 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-38403 being exploited?

There is no known exploitation of CVE-2024-38403 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Ar8035 Firmware

- [CVE-2023-33106](https://insights.sbomify.com/CVE-2023-33106/): Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset (high 8.4, exploited in the wild)
- [CVE-2024-45569](https://insights.sbomify.com/CVE-2024-45569/): Improper Validation of Array Index in WLAN Host Communication (critical 9.8)
- [CVE-2024-21473](https://insights.sbomify.com/CVE-2024-21473/): Improper Input Validation in WIN SON (critical 9.8)
- [CVE-2023-28582](https://insights.sbomify.com/CVE-2023-28582/): Buffer Copy Without Checking Size of Input in Data Modem (critical 9.8)
- [CVE-2023-43552](https://insights.sbomify.com/CVE-2023-43552/): Use After Free in WLAN Host Communication (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-38403 and fix it if it is affected.

What it is: CVE-2024-38403 is a high-severity denial of service vulnerability in Qualcomm Ar8035 Firmware, published on 4 Nov 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-2024-38403 in the wild and no public exploit code.

Affected product: Qualcomm Ar8035 Firmware. 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-2024-38403/ (Markdown: https://insights.sbomify.com/CVE-2024-38403/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-38403
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-38403
- OSV: https://osv.dev/vulnerability/CVE-2024-38403

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-38403/
Summaries are generated and may contain mistakes; the official description above is the record.