# CVE-2023-21237: Android Pixel Information Disclosure Vulnerability

> A local attacker can hide foreground service notifications in Android, leading to information disclosure without user interaction or elevated privileges.

- **Severity:** Medium 6.2 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Yes, since 5 Mar 2024 (CISA KEV)
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 28 Jun 2023
- **Updated:** 21 Oct 2025
- **Also known as:** A-251586912, GHSA-qhm9-gg74-g6m6, PUB-A-251586912

## What is CVE-2023-21237?

CVE-2023-21237 is a medium-severity vulnerability in Google Android, published on 28 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In applyRemoteView of NotificationContentInflater.java, there is a possible way to hide foreground service notification due to misleading or insufficient UI. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-251586912

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2023-21237?

It affects 1 product.


Products: Google Android.

## How do I fix CVE-2023-21237?

Apply the vendor's patch. US federal agencies must fix it by 26 Mar 2024.

## Is CVE-2023-21237 being exploited?

Yes. Attackers have exploited CVE-2023-21237 in the wild since at least 5 Mar 2024.

## 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-2023-21237 and fix it if it is affected.

What it is: CVE-2023-21237 is a medium-severity vulnerability in Google Android, published on 28 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2023-21237 in the wild since at least 5 Mar 2024.

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-2023-21237/ (Markdown: https://insights.sbomify.com/CVE-2023-21237/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-21237
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-21237
- OSV: https://osv.dev/vulnerability/CVE-2023-21237

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-21237/
Summaries are generated and may contain mistakes; the official description above is the record.