# CVE-2023-43543: Use After Free in Audio

> A race condition in Qualcomm Snapdragon audio drivers allows attackers to trigger a use-after-free, potentially leading to code execution or privilege escalation.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/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:** Yes
- **Published:** 3 Jun 2024
- **Updated:** 2 Aug 2024
- **Also known as:** 3555530, A-314786138, GHSA-95ch-8j4p-q55m, PUB-A-314786138

## What is CVE-2023-43543?

CVE-2023-43543 is a medium-severity use after free vulnerability in Qualcomm Qam8255p Firmware, published on 3 Jun 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory corruption in Audio during a playback or a recording due to race condition between allocation and deallocation of graph object.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2023-43543?

It affects 16 products.


Products: Qualcomm Qam8255p Firmware, Qualcomm Qam8775p Firmware, Qualcomm Qca6584au Firmware, Qualcomm Qca6698aq Firmware, Qualcomm Sa8255p Firmware, Qualcomm Sa8770p Firmware, Qualcomm Sa8775p Firmware, Qualcomm Sa9000p Firmware, Qualcomm Snapdragon Auto 5g Modem-Rf Gen 2 Firmware, Qualcomm Snapdragon W5\+ Gen 1 Wearable Firmware, Qualcomm Sw5100 Firmware, Qualcomm Sw5100p Firmware, Qualcomm Wcn3980 Firmware, Qualcomm Wcn3988 Firmware, Qualcomm Wsa8830 Firmware, Qualcomm Wsa8835 Firmware.

## How do I fix CVE-2023-43543?

Apply the vendor's patch.

## Is CVE-2023-43543 being exploited?

There is no known exploitation of CVE-2023-43543 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Qam8255p Firmware

- [CVE-2025-47372](https://insights.sbomify.com/CVE-2025-47372/): Buffer Copy Without Checking Size of Input in Boot (critical 9.0)
- [CVE-2023-43517](https://insights.sbomify.com/CVE-2023-43517/): Improper Access Control in Automotive Multimedia (high 8.4)
- [CVE-2023-33108](https://insights.sbomify.com/CVE-2023-33108/): Use After Free in Graphics (high 8.4)
- [CVE-2023-33074](https://insights.sbomify.com/CVE-2023-33074/): Use After Free in Audio (high 8.4)
- [CVE-2025-47357](https://insights.sbomify.com/CVE-2025-47357/): Missing Authentication for Critical Function in SMSS (high 8.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-43543 and fix it if it is affected.

What it is: CVE-2023-43543 is a medium-severity use after free vulnerability in Qualcomm Qam8255p Firmware, published on 3 Jun 2024. 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-2023-43543 in the wild and no public exploit code.

Affected product: Qualcomm Qam8255p 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-2023-43543/ (Markdown: https://insights.sbomify.com/CVE-2023-43543/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-43543
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-43543
- OSV: https://osv.dev/vulnerability/CVE-2023-43543

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-43543/
Summaries are generated and may contain mistakes; the official description above is the record.