PT-2026-39543

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.8 Description A remote denial of service issue exists in the SMF component. The problem is located in the smf n4 build qos flow to modify list function within the /src/smf/n4-build.c file. Recommendations Update t...

PT-2026-39545

A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function smf nsmf handle create data in hsmf of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be performed from remote. The exploit has been publicly disclosed and may be...

PT-2026-39542

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.8 Description A flaw in the SMF component allows remote attackers to cause a denial of service. The issue exists within the update authorized pcc rule and qos function located in the /src/smf/npcf-handler.c file...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization through the POST /upi/v1/upNodesLinks handler, which processes attacker-controlled JSON input without authentication or authorization checks. An attacker can terminate the entire process by submitting a crafted...

GHSA-44QJ-CGHF-9P97 free5GC's SMF UPI POST /upi/v1/upNodesLinks exits the SMF process on overlapping UE pools (unauthenticated, reachable Fatalf)

Summary free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware same root cause as free5gc/free5gc887. The POST /upi/v1/upNodesLinks create-or-update handler accepts attacker-controlled JSON and passes it directly into UpNodesFromConfiguration, which calls...

PT-2026-39251

Name of the Vulnerable Software and Affected Versions free5GC versions prior to 4.2.2 Description The Session Management Function SMF in free5GC mounts the UPI management route group without inbound OAuth2 middleware, allowing unauthenticated access. The POST endpoint '/upi/v1/upNodesLinks' accep...

CVE-2026-7780 Open5GS smf-registrations Endpoint udm-sm.c udm_state_operational denial of service

A weakness has been identified in Open5GS up to 2.7.7. Affected by this vulnerability is the function udmstateoperational of the file /src/udm/udm-sm.c of the component smf-registrations Endpoint. Executing a manipulation can lead to denial of service. The attack can be executed remotely. The...

CVE-2026-7780

A weakness has been identified in Open5GS up to 2.7.7. Affected by this vulnerability is the function udmstateoperational of the file /src/udm/udm-sm.c of the component smf-registrations Endpoint. Executing a manipulation can lead to denial of service. The attack can be executed remotely. The...

CVE-2026-7780

Open5GS vulnerability CVE-2026-7780 affects the smf-registrations Endpoint, specifically the udm_state_operational function in /src/udm/udm-sm.c, up to version 2.7.7. The issue allows remote manipulation that can lead to a denial of service. A public exploit has been made available, and the proje...

CVE-2026-7780 Open5GS smf-registrations Endpoint udm-sm.c udm_state_operational denial of service

A weakness has been identified in Open5GS up to 2.7.7. Affected by this vulnerability is the function udmstateoperational of the file /src/udm/udm-sm.c of the component smf-registrations Endpoint. Executing a manipulation can lead to denial of service. The attack can be executed remotely. The...

CVE-2026-7780 Open5GS smf-registrations Endpoint udm-sm.c udm_state_operational denial of service

A weakness has been identified in Open5GS up to 2.7.7. Affected by this vulnerability is the function udmstateoperational of the file /src/udm/udm-sm.c of the component smf-registrations Endpoint. Executing a manipulation can lead to denial of service. The attack can be executed remotely. The...

CVE-2025-56568

Assertion failure vulnerability in the PCO Protocol Configuration Options parser in the SMF Session Management Function component of Open5GS before v2.7.5 allows remote attackers to cause denial of service via specially crafted NGAP messages containing malformed length fields in protocol...

Open5GS 安全漏洞

Open5GS is an open-source implementation of 5G Core and EPC in C language, which serves as the core network for LTE/NR networks. Versions of Open5GS 2.7.7 and earlier contain security vulnerabilities. These vulnerabilities stem from issues with the smf-registrations endpoint in the function...

PT-2026-36928

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.8 Description A remote flaw exists in the udm state operational function within the /src/udm/udm-sm.c file of the 'smf-registrations' endpoint. Manipulation of this component can lead to a denial of service...

PT-2026-36167

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.5 Description An assertion failure in the PCO Protocol Configuration Options parser within the SMF Session Management Function component allows remote attackers to cause a denial of service. This occurs when the...

CVE-2025-56568

Assertion failure vulnerability in the PCO Protocol Configuration Options parser in the SMF Session Management Function component of Open5GS before v2.7.5 allows remote attackers to cause denial of service via specially crafted NGAP messages containing malformed length fields in protocol...

CVE-2026-4988 Open5GS CCA Message smf_s6b denial of service

A security flaw has been discovered in Open5GS 2.7.6. This issue affects the function smfgxccacb/smfgyccacb/smfs6b of the component CCA Message Handler. The manipulation results in denial of service. The attack may be launched remotely. Attacks of this nature are highly complex. The exploitabilit...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference via the PFCP SessionReportRequest process when ReportType.DLDR is set but the DownlinkDataReport information element is missing. An attacker can cause the process to terminate unexpectedly by sending a specially...

CVE-2026-26024 free5GC SMF crash (nil pointer dereference) on PFCP SessionReportRequest when ReportType.USAR=1 and UsageReport omits mandatory URRID sub-IE 

free5GC SMF provides Session Management Function for free5GC, an open-source project for 5th generation 5G mobile core networks. In versions up to and including 1.4.1, SMF panics and terminates when processing a malformed PFCP SessionReportRequest on the PFCP UDP/8805 interface. No known upstrea...

CVE-2026-25501 free5GC SMF crash (nil pointer dereference) on PFCP SessionReportRequest when ReportType.DLDR is set but DownlinkDataReport IE is missing

free5GC SMF provides Session Management Function for free5GC, an open-source project for 5th generation 5G mobile core networks. In versions up to and including 1.4.1, SMF panics due to nil pointer dereference and the SMF process terminates. This is triggered by a malformed PFCP...