# CVE-2023-21445: Missing authorization in The patch adds proper access control to use explicit intent.

> A local attacker can write files with elevated privileges in the Samsung MyFiles app due to improper access control on implicit intents.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`)
- **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:** No
- **Published:** 9 Feb 2023
- **Updated:** 24 Mar 2025
- **Also known as:** GHSA-q22j-6g9r-wc97

## What is CVE-2023-21445?

CVE-2023-21445 is a medium-severity missing authorization vulnerability in Samsung Android, published on 9 Feb 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

Improper access control vulnerability in MyFiles prior to versions 12.2.09 in Android R(11), 13.1.03.501 in Android S(12) and 14.1.00.422 in Android T(13) allows local attacker to write file with MyFiles privilege via implicit intent.

Weakness: CWE-668 (Exposure of Resource to Wrong Sphere), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2023-21445?

It affects 1 product.


Products: Samsung Android.

## How do I fix CVE-2023-21445?

No fix has been published for CVE-2023-21445 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-21445 being exploited?

There is no known exploitation of CVE-2023-21445 in the wild and no public exploit code.

## Other vulnerabilities in Samsung Android

- [CVE-2025-21042](https://insights.sbomify.com/CVE-2025-21042/): Samsung Mobile Devices Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2025-21043](https://insights.sbomify.com/CVE-2025-21043/): Samsung Mobile Devices Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2021-25487](https://insights.sbomify.com/CVE-2021-25487/): Samsung Mobile Devices Out-of-Bounds Read (high 7.3, exploited in the wild)
- [CVE-2021-25394](https://insights.sbomify.com/CVE-2021-25394/): Samsung Mobile Devices Race Condition (medium 6.4, exploited in the wild)
- [CVE-2021-25395](https://insights.sbomify.com/CVE-2021-25395/): Samsung Mobile Devices Race Condition (medium 6.4, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-21445 and fix it if it is affected.

What it is: CVE-2023-21445 is a medium-severity missing authorization vulnerability in Samsung Android, published on 9 Feb 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-2023-21445 in the wild and no public exploit code.

Affected product: Samsung 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-2023-21445/ (Markdown: https://insights.sbomify.com/CVE-2023-21445/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-21445
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-21445
- OSV: https://osv.dev/vulnerability/CVE-2023-21445

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-21445/
Summaries are generated and may contain mistakes; the official description above is the record.