# CVE-2025-6952: Open5GS AMF Service amf-sm.c amf_state_operational assertion

> A local attacker can trigger a reachable assertion in the Open5GS AMF service, causing a denial of service.

- **Severity:** Medium 4.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Jul 2025
- **Updated:** 1 Jul 2025
- **Also known as:** GHSA-xxvm-gxxx-r9pg

## What is CVE-2025-6952?

CVE-2025-6952 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 1 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability, which was classified as problematic, has been found in Open5GS up to 2.7.5. This issue affects the function amf_state_operational of the file src/amf/amf-sm.c of the component AMF Service. The manipulation leads to reachable assertion. It is possible to launch the attack on the local host. The identifier of the patch is 53e9e059ed96b940f7ddcd9a2b68cb512524d5db. It is recommended to apply a patch to fix this issue.

Weakness: CWE-617 (Reachable Assertion)

## Which versions are affected by CVE-2025-6952?

It affects 1 product.


Products: Open5gs Open5gs.

## How do I fix CVE-2025-6952?

No fix has been published for CVE-2025-6952 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-6952 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6952 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-2025-6952 and fix it if it is affected.

What it is: CVE-2025-6952 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 1 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6952 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-2025-6952/ (Markdown: https://insights.sbomify.com/CVE-2025-6952/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-6952
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-6952
- OSV: https://osv.dev/vulnerability/CVE-2025-6952

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-6952/
Summaries are generated and may contain mistakes; the official description above is the record.