CVE-2026-42082

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,...

EUVD-2026-32556

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,...

CVE-2026-42082 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,...

Buffer Overflow

Overview Affected versions of this package are vulnerable to Buffer Overflow in the PathSwitchRequest process. An attacker can cause memory corruption by sending specially crafted requests remotely to the affected component. Remediation Upgrade github.com/omec-project/amf/nas/nassecurity to versi...

Out-of-Bounds

Overview Affected versions of this package are vulnerable to Out-of-Bounds in the PDUSessionResourceModifyIndication function of the file handler.go. An attacker can cause memory corruption by sending specially crafted requests to the affected process. Remediation Upgrade...

Buffer Overflow

Overview Affected versions of this package are vulnerable to Buffer Overflow in the NGSetupRequest process. An attacker can cause memory corruption and potentially compromise confidentiality, integrity, and availability by sending specially crafted requests remotely. Remediation Upgrade...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference via the UERadioCapabilityCheckResponse function in the dispatcher.go file. An attacker can cause a denial of service by sending specially crafted remote requests that trigger a null pointer dereference...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference via the file ngap/handler.go of the component NGAP Message Handler. This manipulation causes null pointer dereference. Remote exploitation of the attack is possible. The exploit has been made available to the...

Out-of-Bounds

Overview Affected versions of this package are vulnerable to Out-of-Bounds via an unknown function of the file ngap/dispatcher.go of the component NGAP Message Handler. The manipulation leads to memory corruption. The attack may be initiated remotely. The exploit is publicly available and might b...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference via the function RANConfiguration of the file ngap/handler.go. The manipulation results in null pointer dereference. The attack may be launched remotely. The exploit has been released to the public and may be us...

GHSA-VRRX-58H3-PRMH Free5GC AMF has Missing Concurrent NAS SMC Validation During NGAP Handover

Summary The AMF in Free5GC v4.2.1 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...

Free5GC AMF has Missing Concurrent NAS SMC Validation During NGAP Handover

Summary The AMF in Free5GC v4.2.1 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...

PT-2026-38367

Name of the Vulnerable Software and Affected Versions free5GC versions prior to 4.2.2 Description The Access and Mobility Management Function AMF in free5GC fails to enforce concurrent security procedure rules. Specifically, the AMF does not verify if an N2 handover procedure is ongoing before...

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