# CVE-2025-69250: free5GC has Improper Error Handling in UDM, Leading to Information Exposure

> Remote attackers can extract internal error details from free5GC UDM, enabling service fingerprinting and exposing implementation specifics.

- **Severity:** Medium 6.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Feb 2026
- **Updated:** 25 Feb 2026
- **Also known as:** GHSA-6w77-5pqh-83rm

## What is CVE-2025-69250?

CVE-2025-69250 is a medium-severity vulnerability in free5gc udm, published on 23 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, the service reliably leaks detailed internal error messages (e.g., strconv.ParseInt parsing errors) to remote clients when processing invalid pduSessionId inputs. This exposes implementation details and can be used for service fingerprinting. All deployments of free5GC using the UDM Nudm_UECM DELETE service may be vulnerable. free5gc/udm pull request 76 contains a fix for the issue. No direct workaround is available at the application level. Applying the official patch is recommended.

Weakness: CWE-754 (Improper Check for Unusual or Exceptional Conditions), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2025-69250?

It affects 1 product.


Products: Free5gc Udm.

## How do I fix CVE-2025-69250?

No fix has been published for CVE-2025-69250 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-69250 being exploited?

There is no known exploitation of CVE-2025-69250 in the wild and no public exploit code.

## Other vulnerabilities in free5gc udm

- [CVE-2026-33064](https://insights.sbomify.com/CVE-2026-33064/): free5GC UDM DataChangeNotification Procedure Panic Due to Nil Pointer Dereference (high 8.7)
- [CVE-2026-33191](https://insights.sbomify.com/CVE-2026-33191/): free5GC UDM vulnerable to null byte injection in URL path parameters causing 500 Internal Server Error (high 8.7)
- [CVE-2026-33192](https://insights.sbomify.com/CVE-2026-33192/): free5GC UDM incorrectly returns 500 for empty supi path parameter in PATCH sdm-subscriptions reques (high 8.7)
- [CVE-2023-46324](https://insights.sbomify.com/CVE-2023-46324/): free5GC udm vulnerable to Invalid Curve Attack (high 7.5)
- [CVE-2026-33065](https://insights.sbomify.com/CVE-2026-33065/): free5GC UDM incorrectly returns 500 for empty supi path parameter in DELETE sdm-subscriptions request (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-69250 and fix it if it is affected.

What it is: CVE-2025-69250 is a medium-severity vulnerability in free5gc udm, published on 23 Feb 2026. 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-2025-69250 in the wild and no public exploit code.

Affected product: free5gc udm. 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-2025-69250/ (Markdown: https://insights.sbomify.com/CVE-2025-69250/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-69250
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-69250
- OSV: https://osv.dev/vulnerability/CVE-2025-69250

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-69250/
Summaries are generated and may contain mistakes; the official description above is the record.