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CVE-2025-69208

free5GC UDR's NEF incorrectly returns 500 for missing PFD data (UDR 404) in Nnef_PfdManagement GET request

Published: Feb 23, 2026Updated: Feb 25, 2026 Sources: CVE List NVDCWE-209
5.3MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 81.1%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-209

Affected Products

free5gc
oss-projectaka free5gc udm, free5gc smf, udm, smf
udrOn-premNetwork Device
Networking Infrastructure / network-management

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Discovery
View detailed technique mapping

References

https://github.com/free5gc/free5gc/security/advisories/GHSA-f3pc-w7jp-4jh2
github.com
https://github.com/free5gc/free5gc/issues/753
github.com
https://github.com/free5gc/udr/pull/56
github.com
and 1 more references View all →

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