free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of the User Data Repository are affected by Improper Error Handling with Information Exposure. The NEF component reliably leaks internal parsing error details (e.g., invalid character 'n' after top-level value) to remote clients, which can aid attackers in service fingerprinting. All deployments of free5GC using the Nnef_PfdManagement service may be vulnerable. free5gc/udr pull request 56 contains a patch. No direct workaround is available at the application level. Applying the official patch is recommended.
History

Tue, 24 Feb 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Free5gc
Free5gc udr
Vendors & Products Free5gc
Free5gc udr

Tue, 24 Feb 2026 00:45:00 +0000

Type Values Removed Values Added
Description free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of the User Data Repository are affected by Improper Error Handling with Information Exposure. The NEF component reliably leaks internal parsing error details (e.g., invalid character 'n' after top-level value) to remote clients, which can aid attackers in service fingerprinting. All deployments of free5GC using the Nnef_PfdManagement service may be vulnerable. free5gc/udr pull request 56 contains a patch. No direct workaround is available at the application level. Applying the official patch is recommended.
Title free5GC vulnerable to improper error handling in NEF with information exposure
Weaknesses CWE-209
References
Metrics cvssV4_0

{'score': 6.6, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-02-24T00:01:05.794Z

Updated: 2026-02-24T00:01:05.794Z

Reserved: 2025-12-30T14:07:48.460Z

Link: CVE-2025-69253

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-02-24T01:16:11.913

Modified: 2026-02-24T14:13:49.320

Link: CVE-2025-69253

cve-icon Redhat

No data.