# CVE-2018-9356: Use after free in Android

> A double free vulnerability in Android's BNEP component allows remote attackers to execute arbitrary code without user interaction or additional privileges.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Nov 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-mhwj-6qmw-wq9v

## What is CVE-2018-9356?

CVE-2018-9356 is a critical use after free vulnerability in Google Android, published on 6 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In bnep_data_ind of bnep_main.c, there is a possible remote code execution due to a double free. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android-6.0 Android-6.0.1 Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1 Android ID: A-74950468.

Weakness: CWE-415 (Double Free)

## Which versions are affected by CVE-2018-9356?

It affects 1 product.


Products: Google Android.

## How do I fix CVE-2018-9356?

No fix has been published for CVE-2018-9356 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-9356 being exploited?

There is no known exploitation of CVE-2018-9356 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-2018-9356 and fix it if it is affected.

What it is: CVE-2018-9356 is a critical use after free vulnerability in Google Android, published on 6 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-9356 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-2018-9356/ (Markdown: https://insights.sbomify.com/CVE-2018-9356/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-9356
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-9356
- OSV: https://osv.dev/vulnerability/CVE-2018-9356

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-9356/
Summaries are generated and may contain mistakes; the official description above is the record.