CVE-2026-4531

Summary

A weakness has been identified in Free5GC 4.1.0. Affected is the function HandleRegistrationComplete of the file internal/gmm/handler.go of the component AMF. Executing a manipulation can lead to denial of service. The attack may be performed from remote. This patch is called 52e9386401ce56ea773c5aa587d4cdf7d53da799. It is best practice to apply a patch to resolve this issue.

Affected Software

Weaknesses

• CWE-404: Denial of Service

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://github.com/free5gc/free5gc/issues/792

References

• https://vuldb.com/?id.352319
• https://vuldb.com/?ctiid.352319
• https://vuldb.com/?submit.774073
• https://github.com/free5gc/free5gc/issues/792
• https://github.com/free5gc/amf/pull/198
• https://github.com/free5gc/amf/commit/52e9386401ce56ea773c5aa587d4cdf7d53da799
• https://github.com/free5gc/free5gc/

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