High severity7.5NVD Advisory· Published Feb 24, 2026· Updated Jun 17, 2026
CVE-2025-69252
CVE-2025-69252
Description
free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 have a NULL Pointer Dereference vulnerability. Remote unauthenticated attackers can trigger a service panic (Denial of Service) by sending a crafted PUT request with an unexpected ueId, crashing the UDM service. All deployments of free5GC using the UDM component may be affected. 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.
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Affected products
4Patches
Vulnerability mechanics
References
4- github.com/free5gc/free5gc/security/advisories/GHSA-v8cv-qvf6-9rpmnvdPatchVendor Advisory
- github.com/free5gc/udm/commit/504b14458d156558b3c0ade7107b86b3d5e72998nvdPatch
- github.com/free5gc/free5gc/issues/752nvdExploitIssue TrackingPatchVendor Advisory
- github.com/free5gc/udm/pull/76nvdIssue Tracking
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