CVE-2025-69208
free5GC UDR's NEF incorrectly returns 500 for missing PFD data (UDR 404) in Nnef_PfdManagement GET request
Description
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 Nnef_PfdManagement 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.
INFO
Published Date :
Feb. 23, 2026, 10:16 p.m.
Last Modified :
Feb. 25, 2026, 3:49 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Update free5GC UDR to version 1.4.1 or later.
- Apply provided patches for affected Nnef_PfdManagement services.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-69208.
| URL | Resource |
|---|---|
| https://github.com/free5gc/free5gc/issues/753 | Exploit Issue Tracking Patch Vendor Advisory |
| https://github.com/free5gc/free5gc/security/advisories/GHSA-f3pc-w7jp-4jh2 | Patch Vendor Advisory |
| https://github.com/free5gc/udr/commit/91bb34bd96e1c89b3fddca80db8b90049da61ebb | Patch |
| https://github.com/free5gc/udr/pull/56 | Issue Tracking Patch |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-69208 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-69208
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-69208 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-69208 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 25, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:free5gc:udr:*:*:*:*:*:go:*:* versions up to (including) 1.4.1 Added Reference Type GitHub, Inc.: https://github.com/free5gc/free5gc/issues/753 Types: Exploit, Issue Tracking, Patch, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/free5gc/free5gc/security/advisories/GHSA-f3pc-w7jp-4jh2 Types: Patch, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/free5gc/udr/commit/91bb34bd96e1c89b3fddca80db8b90049da61ebb Types: Patch Added Reference Type GitHub, Inc.: https://github.com/free5gc/udr/pull/56 Types: Issue Tracking, Patch -
New CVE Received by [email protected]
Feb. 23, 2026
Action Type Old Value New Value Added Description 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 Nnef_PfdManagement 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-209 Added Reference https://github.com/free5gc/free5gc/issues/753 Added Reference https://github.com/free5gc/free5gc/security/advisories/GHSA-f3pc-w7jp-4jh2 Added Reference https://github.com/free5gc/udr/commit/91bb34bd96e1c89b3fddca80db8b90049da61ebb Added Reference https://github.com/free5gc/udr/pull/56