EUVD-2026-67112

An issue in the NGAP handler of free5gc v4.0.1 allows attackers to cause a Denial of Service DoS via a crafted NAS PDU...

CVE-2026-30062

CVE-2026-30062 affects the NGAP handler in free5gc v4.0.1 , an open-source 5G Core implementation. An unauthenticated remote attacker can send a crafted NAS PDU to trigger a Denial of Service , with the CVSS 3.1 score of 7.5 (HIGH) reflecting a network attack vector requiring no privileges or use...

CVE-2026-30057

An issue in the CreateUEContext handler component of free5gc v4.1.0 allows attackers to cause a Denial of Service DoS via supplying a crafted request...

CVE-2026-30051

CVE-2026-30051 affects the free5gc v4.1.0 open-source 5G core network implementation. The vulnerability resides in the CreateUEContextProcedure function, reachable at the API endpoint /v1/ue-contexts/{supi} . An unauthenticated remote attacker can cause a Denial of Service by sending a crafted PU...

EUVD-2026-67113

An issue in the NF Discovery endpoint of free5gc v4.0.1 allows attackers to cause a Denial of Service DoS via a crafted snssais query...

CVE-2026-30063

CVE-2026-30063 affects the NF Discovery endpoint of free5gc v4.0.1 , an open-source 5G Core implementation. An unauthenticated, remote attacker can trigger a Denial of Service by sending a crafted snssais query to this endpoint. The vulnerability is rated CVSS 7.5 (HIGH) with a vector of AV:N/AC:...

CVE-2026-30069

CVE-2026-30069 is a NULL pointer dereference in the UDMC registration handler component of free5gc v4.0.1 , an open-source 5G core network implementation. An unauthenticated remote attacker can trigger a Denial of Service by supplying a crafted payload, leading to a crash without impacting confid...

EUVD-2026-67119

An issue in the RechargePut function of free5gc v4.0.1 allows attackers to cause a Denial of Service DoS via a crafted input...

EUVD-2026-67114

Improper input validation in the buildFilter function processor/processor.go of free5gc v4.0.1 allows attackers to cause a Denial of Service DoS via a crafted input...

EUVD-2026-67120

A NULL pointer dereference in the CDR processing path of free5gc v4.0.1 allows attackers to cause a Denial of Service DoS via supplying crafted payload...

CVE-2026-30073

An issue in the NssaiAvailabilitySubscriptionCreate component of free5gc v4.0.1 allows attackers to cause a Denial of Service DoS via a crafted POST request...

EUVD-2026-67121

An issue in the NssaiAvailabilitySubscriptionCreate component of free5gc v4.0.1 allows attackers to cause a Denial of Service DoS via a crafted POST request...

CVE-2026-30072

A NULL pointer dereference in the CDR processing path of free5gc v4.0.1 allows attackers to cause a Denial of Service DoS via supplying crafted payload...

CVE-2026-30051

An issue in the CreateUEContextProcedure function /v1/ue-contexts/supi of free5gc v4.1.0 allows attackers to cause a Denial of Service DoS via supplying a crafted PUT request...

Improper Input Validation

free5GC is vulnerable to Improper Input Validation. The vulnerability is due to the AUSF failing to validate the supiOrSuci field in UE authentication requests before forwarding it in an unescaped URL path, which allows an unauthenticated attacker to send crafted input containing null bytes or...

CVE-2026-53551

The vulnerability CVE-2026-53551 affects free5GC AUSF prior to version 1.4.5, where the supiOrSuci field in UE authentication requests is not validated. Null bytes (\x00) and other control characters pass through JSON parsing and are forwarded to the UDM in an unescaped URL path, causing Go’s net...

CVE-2026-53551 free5GC AUSF: null byte injection in supiOrSuci causes HTTP 500 internal service failure

free5GC is an open-source implementation of the 5G core network. Prior to 1.4.5, the free5GC AUSF Authentication Server Function does not validate the supiOrSuci field in UE authentication requests. Null bytes \x00 and other control characters pass through JSON parsing unchanged and are forwarded...

CVE-2026-53551 free5GC AUSF: null byte injection in supiOrSuci causes HTTP 500 internal service failure

free5GC is an open-source implementation of the 5G core network. Prior to 1.4.5, the free5GC AUSF Authentication Server Function does not validate the supiOrSuci field in UE authentication requests. Null bytes \x00 and other control characters pass through JSON parsing unchanged and are forwarded...

SUSE CVE-2026-44319

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF terminates the entire process when a stored PFD-subscription notifyUri cannot be reached. In PfdChangeNotifier.FlushNotifications, the notifier calls NnefPFDmanagementNotify... and on any delivery error...

SUSE CVE-2026-44327

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the nnef-oam route group without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can hit the OAM route with no Authorization header at all and the handl...