# CVE-2023-20941: Memory corruption in Android

> An out-of-bounds write in the Android kernel allows local attackers to escalate privileges via physical access and user interaction.

- **Severity:** Medium 6.6 (`CVSS:3.1/AV:P/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 19 Apr 2023
- **Updated:** 5 Feb 2025
- **Also known as:** A-264029575, ASB-A-264029575, GHSA-5qxw-85cv-8fqm

## What is CVE-2023-20941?

CVE-2023-20941 is a medium-severity memory corruption vulnerability in Google Android, published on 19 Apr 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

In acc_ctrlrequest_composite of f_accessory.c, there is a possible out of bounds write due to a missing bounds check. This could lead to physical escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-264029575References: Upstream kernel

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2023-20941?

It affects 1 product.


Products: Google Android.

## How do I fix CVE-2023-20941?

Apply the vendor's patch.

## Is CVE-2023-20941 being exploited?

There is no known exploitation of CVE-2023-20941 in the wild and no public exploit code.

## Other vulnerabilities in Google Android

- [CVE-2026-58704](https://insights.sbomify.com/CVE-2026-58704/): Google Pixel Improper Authorization (high 8.8, exploited in the wild)
- [CVE-2025-48543](https://insights.sbomify.com/CVE-2025-48543/): Android Runtime Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2023-35674](https://insights.sbomify.com/CVE-2023-35674/): Android Framework Privilege Escalation (high 8.8, exploited in the wild)
- [CVE-2025-48595](https://insights.sbomify.com/CVE-2025-48595/): Android Framework Integer Overflow (high 8.4, exploited in the wild)
- [CVE-2024-32896](https://insights.sbomify.com/CVE-2024-32896/): Android Pixel Privilege Escalation (high 8.1, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-20941 and fix it if it is affected.

What it is: CVE-2023-20941 is a medium-severity memory corruption vulnerability in Google Android, published on 19 Apr 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-20941 in the wild and no public exploit code.

Affected product: Google Android. 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-2023-20941/ (Markdown: https://insights.sbomify.com/CVE-2023-20941/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-20941
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-20941
- OSV: https://osv.dev/vulnerability/CVE-2023-20941

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-20941/
Summaries are generated and may contain mistakes; the official description above is the record.