# CVE-2021-37069: Race condition in EMUI

> A race condition in Huawei mobile operating systems allows attackers to disrupt service availability.

- **Severity:** High 7.4 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/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:** 8 Dec 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-5gjg-f3cq-cmwg

## What is CVE-2021-37069?

CVE-2021-37069 is a high-severity vulnerability in Huawei Emui, published on 8 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

There is a Race Condition vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability may lead to availability affected.

Weakness: CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization)

## Which versions are affected by CVE-2021-37069?

It affects 3 products.


Products: Huawei Emui, Huawei Harmonyos, Huawei Magic Ui.

## How do I fix CVE-2021-37069?

No fix has been published for CVE-2021-37069 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-37069 being exploited?

There is no known exploitation of CVE-2021-37069 in the wild and no public exploit code.

## Other vulnerabilities in Huawei Emui

- [CVE-2023-52370](https://insights.sbomify.com/CVE-2023-52370/): Memory corruption in EMUI (critical 9.8)
- [CVE-2023-52378](https://insights.sbomify.com/CVE-2023-52378/): Business logic in EMUI (critical 9.8)
- [CVE-2023-52381](https://insights.sbomify.com/CVE-2023-52381/): Code injection in EMUI (critical 9.8)
- [CVE-2023-52103](https://insights.sbomify.com/CVE-2023-52103/): Memory corruption in EMUI (critical 9.8)
- [CVE-2023-46773](https://insights.sbomify.com/CVE-2023-46773/): Privilege escalation in EMUI (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-37069 and fix it if it is affected.

What it is: CVE-2021-37069 is a high-severity vulnerability in Huawei Emui, published on 8 Dec 2021. 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-2021-37069 in the wild and no public exploit code.

Affected product: Huawei Emui. 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-2021-37069/ (Markdown: https://insights.sbomify.com/CVE-2021-37069/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-37069
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-37069
- OSV: https://osv.dev/vulnerability/CVE-2021-37069

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-37069/
Summaries are generated and may contain mistakes; the official description above is the record.