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TI-2025-42704 Aliases CVE-2025-69252

free5GC has Null Pointer Dereference in UDM, Leading to Service Panic

Priority LOW 36CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-476.

Summary

free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 have a NULL Pointer Dereference vulnerability. Remote unauthenticated attackers can trigger a service panic (Denial of Service) by sending a crafted PUT request with an unexpected ueId, crashing the UDM service. All deployments of free5GC using the UDM component may be affected. free5gc/udm pull request 76 contains a fix for the issue. No direct workaround is available at the application level. Applying the official patch is recommended.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00592 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

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
free5gcudmup to 1.4.1—No fix listedCNA
  • udm Vendorfree5gc Affected up to 1.4.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

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

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-69252

References

Exploit 1

Patch 2

Other 1

  • TI-2026-25617 free5GC UDM incorrectly returns 500 for empty supi path parameter in PATCH sdm-subscriptions reques CVSS 4.0HIGH 8.7
  • TI-2026-25506 free5GC UDM DataChangeNotification Procedure Panic Due to Nil Pointer Dereference CVSS 4.0HIGH 8.7
  • TI-2026-25507 free5GC UDM incorrectly returns 500 for empty supi path parameter in DELETE sdm-subscriptions request CVSS 4.0MEDIUM 6.9
  • TI-2026-25616 free5GC UDM vulnerable to null byte injection in URL path parameters causing 500 Internal Server Error CVSS 4.0HIGH 8.7
  • TI-2026-22024 free5GC has Improper Input Validation in UDM UEAU Service CVSS 4.0MEDIUM 6.6
  • TI-2025-42703 free5GC has Improper Input Validation in UDM, Leading to Information Exposure CVSS 4.0MEDIUM 6.6
See all 8 →

Sources

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