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-2026-8745

A vulnerability was identified in Open5GS up to 2.7.7. Affected by this vulnerability is the function ogstimeradd in the library /src/ausf/nausf-handler.c of the component AUSF. The manipulation leads to denial of service. The attack can be initiated remotely. The exploit is publicly available an...

CVE-2026-33063

free5GC is an open source 5G core network. free5GC AUSF prior to version 1.4.2 has is an Improper Null Check vulnerability leading to Denial of Service. All deployments of free5GC v4.0.1 using the AUSF UE authentication service /nausf-auth/v1/ue-authentications endpoint are affected. A remote...

CVE-2026-33063 free5GC AUSF UE Authentication Panic on Nil SuciSupiMap Interface Conversion

free5GC is an open source 5G core network. free5GC AUSF prior to version 1.4.2 has is an Improper Null Check vulnerability leading to Denial of Service. All deployments of free5GC v4.0.1 using the AUSF UE authentication service /nausf-auth/v1/ue-authentications endpoint are affected. A remote...