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TI-2025-42662 Aliases CVE-2025-69208

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

Priority LOW 19CWE-209Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-209.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00313 24th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed udr (free5gc): 1.4.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
free5gcudrbefore 1.4.11.4.1Patch availableCNA
  • udr Vendorfree5gc Affected before 1.4.1 Fixed in 1.4.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:free5gc:udr:*:*:*:*:*:go:*:*up to 1.4.1Vulnerablefree5gc
  • cpe:2.3:a:free5gc:udr:*:*:*:*:*:go:*:* Versions up to 1.4.1 Vulnerable ·free5gc

Remediation

  • Fix · CNA udr (free5gc) Fixed in 1.4.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-69208

References

Exploit 1

Patch 3

  • TI-2026-29118 free5GC UDR: Fail-open handling in PolicyDataSubsToNotifyPost allows unintended subscription creation CVSS 4.0MEDIUM 6.9
  • TI-2026-22025 free5GC has improper error handling in NEF with information exposure CVSS 4.0MEDIUM 6.6
  • TI-2025-42705 free5GC vulnerable to improper error handling in NEF with information exposure CVSS 4.0MEDIUM 6.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences