# CVE-2021-1050: Memory corruption in Android

> A missing bounds check in the PowerVR kernel driver allows local attackers to perform an out-of-bounds write, leading to privilege escalation.

- **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:** 8 Nov 2022
- **Updated:** 1 May 2025
- **Also known as:** A-243825200, ASB-A-243825200, GHSA-vjw4-x6qj-hqcp

## What is CVE-2021-1050?

CVE-2021-1050 is a high-severity memory corruption vulnerability in Google Android, published on 8 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In MMU_UnmapPages of the PowerVR kernel driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-243825200

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

## Which versions are affected by CVE-2021-1050?

It affects 1 product.


Products: Google Android.

## How do I fix CVE-2021-1050?

Apply the vendor's patch.

## Is CVE-2021-1050 being exploited?

There is no known exploitation of CVE-2021-1050 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-2021-1050 and fix it if it is affected.

What it is: CVE-2021-1050 is a high-severity memory corruption vulnerability in Google Android, published on 8 Nov 2022. 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-2021-1050 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-2021-1050/ (Markdown: https://insights.sbomify.com/CVE-2021-1050/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-1050
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-1050
- OSV: https://osv.dev/vulnerability/CVE-2021-1050

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-1050/
Summaries are generated and may contain mistakes; the official description above is the record.