# CVE-2022-43221: Denial of service in n/a

> Attackers can cause a Denial of Service in open5gs by sending crafted PFCP packets, leading to memory exhaustion.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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:** 1 Nov 2022
- **Updated:** 2 May 2025
- **Also known as:** GHSA-hph8-r9jg-pg83

## What is CVE-2022-43221?

CVE-2022-43221 is a high-severity denial of service vulnerability in Open5gs Open5gs, published on 1 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

open5gs v2.4.11 was discovered to contain a memory leak in the component src/upf/pfcp-path.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PFCP packet.

Weakness: CWE-401 (Missing Release of Memory after Effective Lifetime)

## Which versions are affected by CVE-2022-43221?

It affects 1 product.


Products: Open5gs Open5gs.

## How do I fix CVE-2022-43221?

No fix has been published for CVE-2022-43221 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-43221 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-43221 exists.

## Other vulnerabilities in Open5gs Open5gs

- [CVE-2024-40130](https://insights.sbomify.com/CVE-2024-40130/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-28122](https://insights.sbomify.com/CVE-2021-28122/): Missing authorization in n/a (critical 9.8)
- [CVE-2021-25863](https://insights.sbomify.com/CVE-2021-25863/): Hardcoded credentials in n/a (high 8.8)
- [CVE-2025-41067](https://insights.sbomify.com/CVE-2025-41067/): Reachable Assertion vulnerability in Open5GS (high 8.7)
- [CVE-2025-41068](https://insights.sbomify.com/CVE-2025-41068/): Reachable Assertion vulnerability in Open5GS (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-43221 and fix it if it is affected.

What it is: CVE-2022-43221 is a high-severity denial of service vulnerability in Open5gs Open5gs, published on 1 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-43221 exists.

Affected product: Open5gs Open5gs. 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-2022-43221/ (Markdown: https://insights.sbomify.com/CVE-2022-43221/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-43221
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-43221
- OSV: https://osv.dev/vulnerability/CVE-2022-43221

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-43221/
Summaries are generated and may contain mistakes; the official description above is the record.