CVE-2026-4531 Free5GC AMF handler.go HandleRegistrationComplete denial of service

A weakness has been identified in Free5GC 4.1.0. Affected is the function HandleRegistrationComplete of the file internal/gmm/handler.go of the component AMF. Executing a manipulation can lead to denial of service. The attack may be performed from remote. This patch is called...

PT-2026-26958

Name of the Vulnerable Software and Affected Versions Free5GC version 4.1.0 Description A weakness exists in the HandleRegistrationComplete function within the internal/gmm/handler.go file of the AMF component. Exploitation can lead to a denial of service. The attack can be performed remotely...

free5GC 安全漏洞

Free5GC is an open-source project for the 5th generation 5G mobile core network. Version 4.1.0 of Free5GC contains a security vulnerability. This vulnerability stems from an error in the function HandleRegistrationComplete within the AMF component file internal/gmm/handler.go, which may lead to...

CVE-2026-32319 Ella Core: Unauthenticated AMF DoS via malformed InitialUEMessage with undersized integrity-protected NAS payload

Ella Core is a 5G core designed for private networks. Prior to 1.5.1, Ella Core panics when processing a malformed integrity protected NGAP/NAS message with a length under 7 bytes. An attacker able to send crafted NAS messages to Ella Core can crash the process, causing service disruption for all...

CVE-2025-69248

free5GC is an open-source project for 5th generation 5G mobile core networks. Versions up to and including 1.4.1 of free5GC's AMF service have a Buffer Overflow vulnerability leading to Denial of Service. Remote unauthenticated attackers can crash the AMF service by sending a specially crafted NA...

CVE-2025-69248

free5GC is an open-source project for 5th generation 5G mobile core networks. Versions up to and including 1.4.1 of free5GC's AMF service have a Buffer Overflow vulnerability leading to Denial of Service. Remote unauthenticated attackers can crash the AMF service by sending a specially crafted NA...

CVE-2025-69248

Summary (CVE-2025-69248) Affected: free5GC AMF service (versions up to and including 1.4.1). Vulnerability: Buffer overflow in NAS data handling, triggered by a specially crafted NAS Registration Request containing a malformed 5GS Mobile Identity. Impact: Denial of Service to the AMF and, by exte...

CVE-2025-69248 free5GC has Array Index Out of Bounds in AMF Leading to Denial of Service

free5GC is an open-source project for 5th generation 5G mobile core networks. Versions up to and including 1.4.1 of free5GC's AMF service have a Buffer Overflow vulnerability leading to Denial of Service. Remote unauthenticated attackers can crash the AMF service by sending a specially crafted NA...

PT-2026-21565

Name of the Vulnerable Software and Affected Versions free5GC versions up to and including 1.4.1 Description free5GC is an open-source project for 5th generation 5G mobile core networks. A buffer overflow exists in the AMF service, potentially leading to a denial of service. Remote, unauthenticat...

CVE-2025-70121

An array index out of bounds vulnerability in the AMF component of free5GC v4.0.1 allows remote attackers to cause a denial of service via a crafted 5GS Mobile Identity in a NAS Registration Request message. The issue occurs in the GetSUCI method NASMobileIdentity5GS.go when accessing index 5 of ...

CVE-2025-70121

An array index out of bounds vulnerability in the AMF component of free5GC v4.0.1 allows remote attackers to cause a denial of service via a crafted 5GS Mobile Identity in a NAS Registration Request message. The issue occurs in the GetSUCI method NASMobileIdentity5GS.go when accessing index 5 of ...

CVE-2025-70121

An array index out of bounds vulnerability in the AMF component of free5GC v4.0.1 allows remote attackers to cause a denial of service via a crafted 5GS Mobile Identity in a NAS Registration Request message. The issue occurs in the GetSUCI method NASMobileIdentity5GS.go when accessing index 5 of ...

CVE-2023-50019

An issue was discovered in open5gs v2.6.6. InitialUEMessage, Registration request sent at a specific time can crash AMF due to incorrect error handling of NudmUECMRegistration response...

CVE-2023-49391

An issue was discovered in free5GC version 3.3.0, allows remote attackers to execute arbitrary code and cause a denial of service DoS on AMF component via crafted NGAP message...

CVE-2022-38871

In Free5gc v3.0.5, the AMF breaks due to malformed NAS messages...

CVE-2025-1893

A vulnerability was found in Open5GS up to 2.7.2. It has been declared as problematic. Affected by this vulnerability is the function gmmstateauthentication of the file src/amf/gmm-sm.c of the component AMF. The manipulation leads to denial of service. The attack can be launched remotely. This...

CVE-2025-1925

A vulnerability classified as problematic was found in Open5GS up to 2.7.2. Affected by this vulnerability is the function amfnsmfpdusessionhandleupdatesmcontext of the file src/amf/nsmf-handler.c of the component AMF. The manipulation leads to denial of service. The attack can be launched...

CVE-2025-65805

OpenAirInterface CN5G AMF=v2.1.9 has a buffer overflow vulnerability in processing NAS messages. Unauthorized remote attackers can launch a denial-of-service attack and potentially execute malicious code by accessing port N1 and sending an imsi string longer than 1000 to AMF...

CVE-2025-66786

OpenAirInterface CN5G AMF=v2.0.1 There is a logical error when processing JSON format requests. Unauthorized remote attackers can send malicious JSON data to AMF's SBI interface to launch a denial-of-service attack...

PT-2026-1850

Name of the Vulnerable Software and Affected Versions OpenAirInterface CN5G AMF versions prior to v2.1.9 Description A buffer overflow condition exists in the processing of NAS messages. Remote attackers can potentially cause a denial-of-service and possibly execute code by sending an imsi string...