Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Free5Gc | Udm | <= 1.4.1 |
Related Weaknesses (CWE)
References
- https://github.com/free5gc/free5gc/issues/750ExploitIssue TrackingVendor Advisory
- https://github.com/free5gc/free5gc/security/advisories/GHSA-6w77-5pqh-83rmPatchVendor Advisory
- https://github.com/free5gc/udm/commit/504b14458d156558b3c0ade7107b86b3d5e72998Patch
- https://github.com/free5gc/udm/pull/76Issue TrackingPatch
FAQ
What is CVE-2025-69250?
CVE-2025-69250 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 d...
How severe is CVE-2025-69250?
CVE-2025-69250 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-69250?
Check the references section above for vendor advisories and patch information. Affected products include: Free5Gc Udm.