CVE-2026-42081 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...

CVE-2026-44321 free5GC: SMF UPI POST /upi/v1/upNodesLinks exits the SMF process on overlapping UE pools (unauthenticated, reachable Fatalf)

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. The POST /upi/v1/upNodesLinks create-or-update handler accepts attacker-controlled JSON and passes it directly into...

CVE-2026-44321 free5GC: SMF UPI POST /upi/v1/upNodesLinks exits the SMF process on overlapping UE pools (unauthenticated, reachable Fatalf)

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. The POST /upi/v1/upNodesLinks create-or-update handler accepts attacker-controlled JSON and passes it directly into...

EUVD-2026-32574

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's UDR nudr-dr DELETE /subscription-data/ueId/servingPlmnId/ee-subscriptions/subsId/amf-subscriptions handler panics on a single authenticated request against a fresh UDR instance when the supplied ueId does n...

CVE-2026-44324 free5GC: UDR nudr-dr DELETE amf-subscriptions panics on missing UE state via nil interface type assertion (single authenticated request)

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's UDR nudr-dr DELETE /subscription-data/ueId/servingPlmnId/ee-subscriptions/subsId/amf-subscriptions handler panics on a single authenticated request against a fresh UDR instance when the supplied ueId does n...

CVE-2026-44324 free5GC: UDR nudr-dr DELETE amf-subscriptions panics on missing UE state via nil interface type assertion (single authenticated request)

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's UDR nudr-dr DELETE /subscription-data/ueId/servingPlmnId/ee-subscriptions/subsId/amf-subscriptions handler panics on a single authenticated request against a fresh UDR instance when the supplied ueId does n...

CVE-2026-44324

Summary (concrete details available) CVE-2026-44324 affects free5GC’s UDR component (v4.2.1 and prior). The vulnerable handler is the nudr-dr DELETE /subscription-data/{ueId}/{servingPlmnId}/ee-subscriptions/{subsId}/amf-subscriptions. When ueId is missing from UESubsCollection, the code sets a 4...

EUVD-2026-32562

Ella Core is a 5G core designed for private networks. Prior to 1.10.0, Ella Core does not verify the UE Security Capabilities received in NGAP PathSwitchRequest messages against its locally stored values. A malicious gNB can overwrite Ella Core's stored UE security capabilities for any UE with...

CVE-2026-44475 Ella Core: UE Security Capability bypass on NGAP PathSwitchRequest

Ella Core is a 5G core designed for private networks. Prior to 1.10.0, Ella Core does not verify the UE Security Capabilities received in NGAP PathSwitchRequest messages against its locally stored values. A malicious gNB can overwrite Ella Core's stored UE security capabilities for any UE with...

CVE-2026-8743

A vulnerability was found in Open5GS up to 2.7.6. This impacts the function ranuefindbyamfuengapid of the file src/amf/context.c of the component AMF/MME. Performing a manipulation results in improper authorization. It is possible to initiate the attack remotely. The exploit has been made public...

CVE-2026-8783 omec-project amf dispatcher.go UERadioCapabilityCheckResponse null pointer dereference

A security vulnerability has been detected in omec-project amf up to 2.1.3-dev. This impacts the function UERadioCapabilityCheckResponse of the file ngap/dispatcher.go. Such manipulation leads to null pointer dereference. The attack can be executed remotely. The exploit has been disclosed publicl...

amf 安全漏洞

AMF is an open-source library under the Apache License, developed by Free5GC. Versions of AMF such as 2.1.3-dev and earlier contain security vulnerabilities. These vulnerabilities stem from the operation of the function UERadioCapabilityCheckResponse in the file ngap/dispatcher.go, which leads to...

PT-2026-41535

A vulnerability was found in Open5GS up to 2.7.6. This impacts the function ran ue find by amf ue ngap id of the file src/amf/context.c of the component AMF/MME. Performing a manipulation results in improper authorization. It is possible to initiate the attack remotely. The exploit has been made...

GHSA-JQFC-GWJ5-3W63 free5GC's UDR nudr-dr DELETE amf-subscriptions panics on missing UE state via nil interface type assertion (single authenticated request)

Summary free5GC's UDR nudr-dr DELETE /subscription-data/ueId/servingPlmnId/ee-subscriptions/subsId/amf-subscriptions handler panics on a single authenticated request against a fresh UDR instance when the supplied ueId does not exist in UESubsCollection. The processor checks value, ok :=...

Improperly Implemented Security Check for Standard

Overview Affected versions of this package are vulnerable to Improperly Implemented Security Check for Standard in the handlePathSwitchRequestMain function. An attacker can cause persistent service disruption and corrupt internal security context by sending a crafted PathSwitchRequest message fro...

CVE-2026-7535

A vulnerability was found in Open5GS up to 2.7.7. This affects the function amfnamfcommhandleregistrationstatusupdaterequest in the library /lib/app/ogs-init.c of the file /namf-comm/v1/ue-contexts/ueContextId/transfer-update. Performing a manipulation of the argument ueContextId results in denia...

CVE-2026-7535

A vulnerability was found in Open5GS up to 2.7.7. This affects the function amfnamfcommhandleregistrationstatusupdaterequest in the library /lib/app/ogs-init.c of the file /namf-comm/v1/ue-contexts/ueContextId/transfer-update. Performing a manipulation of the argument ueContextId results in denia...

EUVD-2026-26468

A vulnerability was found in Open5GS up to 2.7.7. This affects the function amfnamfcommhandleregistrationstatusupdaterequest in the library /lib/app/ogs-init.c of the file /namf-comm/v1/ue-contexts/ueContextId/transfer-update. Performing a manipulation of the argument ueContextId results in denia...

CVE-2026-7535 Open5GS transfer-update denial of service

A vulnerability was found in Open5GS up to 2.7.7. This affects the function amfnamfcommhandleregistrationstatusupdaterequest in the library /lib/app/ogs-init.c of the file /namf-comm/v1/ue-contexts/ueContextId/transfer-update. Performing a manipulation of the argument ueContextId results in denia...

EUVD-2026-24576

free5GC AMF: Missing default case in Content-Type switch in HTTPUEContextTransfer...