# CVE-2022-46319: Memory corruption in EMUI

> Attackers can exploit missing boundary checks in fingerprint calibration to cause out-of-bounds writes, potentially leading to code execution or privilege escalation on Huawei devices.

- **Severity:** Critical 9.8 (`CVSS:3.1/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:** 20 Dec 2022
- **Updated:** 16 Apr 2025
- **Also known as:** GHSA-594c-767g-25xp

## What is CVE-2022-46319?

CVE-2022-46319 is a critical memory corruption vulnerability in Huawei Emui, published on 20 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Fingerprint calibration has a vulnerability of lacking boundary judgment. Successful exploitation of this vulnerability may cause out-of-bounds write.

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

## Which versions are affected by CVE-2022-46319?

It affects 2 products.


Products: Huawei Emui, Huawei Harmonyos.

## How do I fix CVE-2022-46319?

No fix has been published for CVE-2022-46319 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-46319 being exploited?

There is no known exploitation of CVE-2022-46319 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-2022-46319 and fix it if it is affected.

What it is: CVE-2022-46319 is a critical memory corruption vulnerability in Huawei Emui, published on 20 Dec 2022. 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-2022-46319 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-2022-46319/ (Markdown: https://insights.sbomify.com/CVE-2022-46319/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-46319
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-46319
- OSV: https://osv.dev/vulnerability/CVE-2022-46319

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-46319/
Summaries are generated and may contain mistakes; the official description above is the record.