# CVE-2023-33021: Use After Free in Graphics

> A use-after-free vulnerability in Qualcomm Graphics allows attackers to execute arbitrary code or escalate privileges via malicious command submission packets.

- **Severity:** High 8.4 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:** Yes
- **Published:** 5 Sep 2023
- **Updated:** 2 Aug 2024
- **Also known as:** 3397562, A-285903020, ASB-A-285903020, GHSA-6m57-9wqh-pprq

## What is CVE-2023-33021?

CVE-2023-33021 is a high-severity use after free vulnerability in Qualcomm Apq8064au Firmware, published on 5 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory corruption in Graphics while processing user packets for command submission.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2023-33021?

It affects 168 products.


Products: Qualcomm Apq8064au Firmware, Qualcomm Aqt1000 Firmware, 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 Firmware, Qualcomm Home Hub 100 Firmware, Qualcomm Mdm9650 Firmware, Qualcomm Msm8996au Firmware, Qualcomm Qam8255p Firmware, Qualcomm Qam8295p Firmware, Qualcomm Qca6174a Firmware, Qualcomm Qca6310 Firmware, Qualcomm Qca6320 Firmware, Qualcomm Qca6391 Firmware and 148 more.

## How do I fix CVE-2023-33021?

Apply the vendor's patch.

## Is CVE-2023-33021 being exploited?

There is no known exploitation of CVE-2023-33021 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Apq8064au Firmware

- [CVE-2022-33219](https://insights.sbomify.com/CVE-2022-33219/): Integer Overflow to Buffer Overflow in Automotive (critical 9.3)
- [CVE-2023-21643](https://insights.sbomify.com/CVE-2023-21643/): Untrusted Pointer Dereference in Automotive (critical 9.1)
- [CVE-2025-27074](https://insights.sbomify.com/CVE-2025-27074/): Incorrect Calculation of Buffer Size in SCE-Mink (high 8.8)
- [CVE-2023-21632](https://insights.sbomify.com/CVE-2023-21632/): Stack-based Buffer Overflow in Automotive GPU (high 8.4)
- [CVE-2022-40520](https://insights.sbomify.com/CVE-2022-40520/): Stack based buffer overflow in Core (high 8.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-33021 and fix it if it is affected.

What it is: CVE-2023-33021 is a high-severity use after free vulnerability in Qualcomm Apq8064au Firmware, published on 5 Sep 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-2023-33021 in the wild and no public exploit code.

Affected product: Qualcomm Apq8064au 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-2023-33021/ (Markdown: https://insights.sbomify.com/CVE-2023-33021/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-33021
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-33021
- OSV: https://osv.dev/vulnerability/CVE-2023-33021

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-33021/
Summaries are generated and may contain mistakes; the official description above is the record.