CVE-2025-69208: free5GC UDR's NEF incorrectly returns 500 for missing PFD data (UDR 404) in Nnef_PfdManagement GET request
free5GC UDR is the user data repository (UDR) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. Versions prior to 1.4.1 contain an Improper Error Handling vulnerability with Information Exposure. All deployments of free5GC using the NnefPfdManagement service may be affected. The NEF component reliably leaks internal parsing errors (e.g., invalid character 'n' after top-level value) to remote clients. This can aid attackers in fingerprinting server software and logic flows. Version 1.4.1 fixes the issue. There is no direct workaround at the application level. The recommended mitigation is to apply the provided patch.
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Patch Available
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Frequently Asked Questions
What is the severity of CVE-2025-69208?
CVE-2025-69208 has been classified as a moderate severity vulnerability due to improper error handling.
How do I fix CVE-2025-69208?
To fix CVE-2025-69208, users should upgrade to free5GC UDR version 1.4.1 or later.
What does CVE-2025-69208 affect?
CVE-2025-69208 affects free5GC UDR versions prior to 1.4.1, specifically related to the NEF and PFD data handling.
Is CVE-2025-69208 a common vulnerability?
CVE-2025-69208 is specific to the free5GC project and may not be widely encountered outside of this software.
What functionality is impacted by CVE-2025-69208?
CVE-2025-69208 impacts the Nnef_PfdManagement GET request functionality, which incorrectly returns a 500 error for missing PFD data.