Go Github.com/free5gc/amf vulnerabilities
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Published CVEs affecting Go Github.com/free5gc/amf: 2 record(s), with affected versions and fixes.
CVE-2026-42082
Medium · 5.4
CWE-358 May 27, 2026
free5GC: Missing Concurrent NAS SMC Validation During NGAP Handover
free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, the AMF in Free5GC does not enforce the concurrent security procedure rules defined in 3GPP TS 33.501 §6.9.5.1. The AMF does not check for ongoing N2 handover procedures before initiating a NAS Security Mode Command, and vice versa. This can lead to mismatches between NAS and AS security contexts in the network and the UE. This vulnerability is fixed in 4.2.2.
CVE-2026-42081
High · 7.1
CWE-358 May 27, 2026
free5GC: UE Security Capability bypass on NGAP PathSwitchRequest
free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, the AMF in Free5GC does not verify the UE Security Capabilities received in NGAP PathSwitchRequest messages against its locally stored values, as mandated by 3GPP TS 33.501 §6.7.3.1. A malicious gNB can overwrite the AMF's stored UE security capabilities with arbitrary values, which are then propagated in PathSwitchRequest Acknowledge messages and subsequent Handover Request messages. This leads to persistent handover denial-of-service for affected UEs. This vulnerability is fixed in 4.2.2.