# CVE-2023-33031: Buffer Copy Without Checking Size of Input in Automotive Audio

> Attacker can exploit memory corruption in Automotive Audio to execute code or escalate privileges on Qualcomm Snapdragon devices.

- **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:** 7 Nov 2023
- **Updated:** 16 Dec 2025
- **Also known as:** 3442627, A-290061915, ASB-A-290061915, GHSA-x4vh-ch66-jvcq

## What is CVE-2023-33031?

CVE-2023-33031 is a high-severity memory corruption vulnerability in Qualcomm Apq8009 Firmware, published on 7 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory corruption in Automotive Audio while copying data from ADSP shared buffer to the VOC packet data buffer.

Weakness: CWE-787 (Out-of-bounds Write), CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2023-33031?

It affects 165 products.


Products: Qualcomm Apq5053-Aa Firmware, Qualcomm Apq8009 Firmware, Qualcomm Apq8017 Firmware, Qualcomm Apq8064au Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm C-V2x 9150 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Flight Rb5 5g Platform Firmware, Qualcomm Mdm9628 Firmware, Qualcomm Mdm9640 Firmware, Qualcomm Mdm9650 Firmware, Qualcomm Msm8108 Firmware, Qualcomm Msm8209 Firmware, Qualcomm Msm8608 Firmware, Qualcomm Msm8905 Firmware, Qualcomm Msm8996au Firmware, Qualcomm Qam8255p Firmware and 145 more.

## How do I fix CVE-2023-33031?

Apply the vendor's patch.

## Is CVE-2023-33031 being exploited?

There is no known exploitation of CVE-2023-33031 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Apq8009 Firmware

- [CVE-2023-33079](https://insights.sbomify.com/CVE-2023-33079/): Use of Out-of-range Pointer Offset in Audio (high 7.8)
- [CVE-2023-33087](https://insights.sbomify.com/CVE-2023-33087/): Buffer Copy without Checking Size of Input (`Classic Buffer Overflow`) in Core (high 7.8)
- [CVE-2023-33055](https://insights.sbomify.com/CVE-2023-33055/): Buffer Copy Without Checking Size of Input in Audio (high 7.8)
- [CVE-2023-24850](https://insights.sbomify.com/CVE-2023-24850/): Improper Validation of Array Index in HLOS (high 7.8)
- [CVE-2023-33034](https://insights.sbomify.com/CVE-2023-33034/): Signed-to-unsigned conversion error in Audio (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-33031 and fix it if it is affected.

What it is: CVE-2023-33031 is a high-severity memory corruption vulnerability in Qualcomm Apq8009 Firmware, published on 7 Nov 2023. 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-2023-33031 in the wild and no public exploit code.

Affected product: Qualcomm Apq8009 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-2023-33031/ (Markdown: https://insights.sbomify.com/CVE-2023-33031/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-33031
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-33031
- OSV: https://osv.dev/vulnerability/CVE-2023-33031

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-33031/
Summaries are generated and may contain mistakes; the official description above is the record.