# CVE-2023-33117: Use After Free in Audio

> A use-after-free vulnerability in Qualcomm Snapdragon audio components allows attackers to execute arbitrary code or escalate privileges via crafted AVCS commands.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 2 Jan 2024
- **Updated:** 18 Jun 2025
- **Also known as:** 3531543, A-303101067, ASB-A-303101067, GHSA-gf8x-c888-36h7

## What is CVE-2023-33117?

CVE-2023-33117 is a high-severity use after free vulnerability in Qualcomm Ar8035 Firmware, published on 2 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory corruption when HLOS allocates the response payload buffer to copy the data received from ADSP in response to AVCS_LOAD_MODULE command.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2023-33117?

It affects 141 products.


Products: Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Flight Rb5 5g Platform Firmware, Qualcomm Qam8255p Firmware, Qualcomm Qam8295p Firmware, Qualcomm Qam8650p Firmware, Qualcomm Qam8775p Firmware, Qualcomm Qca6174a Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6421 Firmware, Qualcomm Qca6426 Firmware, Qualcomm Qca6431 Firmware, Qualcomm Qca6436 Firmware, Qualcomm Qca6574 Firmware and 121 more.

## How do I fix CVE-2023-33117?

Apply the vendor's patch.

## Is CVE-2023-33117 being exploited?

There is no known exploitation of CVE-2023-33117 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-2023-33117 and fix it if it is affected.

What it is: CVE-2023-33117 is a high-severity use after free vulnerability in Qualcomm Ar8035 Firmware, published on 2 Jan 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-2023-33117 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-2023-33117/ (Markdown: https://insights.sbomify.com/CVE-2023-33117/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-33117
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-33117
- OSV: https://osv.dev/vulnerability/CVE-2023-33117

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-33117/
Summaries are generated and may contain mistakes; the official description above is the record.