# CVE-2023-4753: OpenHarmony v3.2.1 and prior version has a system call function usage error

> Local attackers can crash the OpenHarmony kernel by providing erroneous input to a system call function.

- **Severity:** Low 3.9 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 21 Sep 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-pf26-2rq7-37g6

## What is CVE-2023-4753?

CVE-2023-4753 is a low-severity denial of service vulnerability in Openatom Openharmony, published on 21 Sep 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

OpenHarmony v3.2.1 and prior version has a system call function usage error. Local attackers can crash kernel by the error input.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2023-4753?

It affects 1 product.


Products: Openatom Openharmony.

## How do I fix CVE-2023-4753?

No fix has been published for CVE-2023-4753 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-4753 being exploited?

There is no known exploitation of CVE-2023-4753 in the wild and no public exploit code.

## Other vulnerabilities in Openatom Openharmony

- [CVE-2025-0303](https://insights.sbomify.com/CVE-2025-0303/): Liteos_a has a buffer overflow vulnerability (high 8.8)
- [CVE-2025-0304](https://insights.sbomify.com/CVE-2025-0304/): Liteos_a has an use after free vulnerability (high 8.8)
- [CVE-2024-47398](https://insights.sbomify.com/CVE-2024-47398/): Liteos_a has an out-of-bounds write vulnerability (high 8.8)
- [CVE-2024-10074](https://insights.sbomify.com/CVE-2024-10074/): Liteos_a has an use after free vulnerability (high 8.8)
- [CVE-2024-41157](https://insights.sbomify.com/CVE-2024-41157/): Liteos-A has an use after free vulnerability (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-4753 and fix it if it is affected.

What it is: CVE-2023-4753 is a low-severity denial of service vulnerability in Openatom Openharmony, published on 21 Sep 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-2023-4753 in the wild and no public exploit code.

Affected product: Openatom Openharmony. 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-2023-4753/ (Markdown: https://insights.sbomify.com/CVE-2023-4753/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-4753
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-4753
- OSV: https://osv.dev/vulnerability/CVE-2023-4753

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-4753/
Summaries are generated and may contain mistakes; the official description above is the record.