PT-2026-39596

A vulnerability was identified in Open5GS up to 2.7.7. This vulnerability affects the function smf nsmf handle update data in vsmf of the file /src/smf/nsmf-handler.c of the component SMF. The manipulation of the argument qosFlowProfile leads to denial of service. Remote exploitation of the attac...

EUVD-2026-28478

A flaw has been found in Open5GS up to 2.7.7. The affected element is the function nssfnnrfnsselectionhandlegetfromamforvnssf of the file /src/nssf/nnssf-handler.c of the component NSSF. Executing a manipulation can lead to denial of service. The attack can be executed remotely. The exploit has...

EUVD-2026-28480

A vulnerability was found in Open5GS up to 2.7.7. This affects the function ogssbidiscoveryoptionaddservicenames in the library /lib/sbi/message.c of the component NSSF. The manipulation results in denial of service. The attack may be performed from remote. The exploit has been made public and...

CVE-2026-8123

A vulnerability was determined in Open5GS up to 2.7.7. This impacts the function ogssbidiscoveryoptionaddsnssais in the library /lib/sbi/message.c of the component NSSF. This manipulation causes denial of service. It is possible to initiate the attack remotely. The exploit has been publicly...

CVE-2026-8122

Open5GS

CVE-2026-8121 Open5GS NSSF conv.c ogs_sbi_parse_plmn_list denial of service

A vulnerability has been found in Open5GS up to 2.7.7. The impacted element is the function ogssbiparseplmnlist in the library /lib/sbi/conv.c of the component NSSF. The manipulation leads to denial of service. The attack is possible to be carried out remotely. The exploit has been disclosed to t...

CVE-2026-8120 Open5GS NSSF nnssf-handler.c denial of service

A flaw has been found in Open5GS up to 2.7.7. The affected element is the function nssfnnrfnsselectionhandlegetfromamforvnssf of the file /src/nssf/nnssf-handler.c of the component NSSF. Executing a manipulation can lead to denial of service. The attack can be executed remotely. The exploit has...

PT-2026-38603

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.8 Description A flaw in the NSSF component allows a local attacker to cause a denial of service through manipulation of the ogs sbi stream find by id function within the /lib/sbi/nghttp2-server.c library...

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 the function ogssbiparseplmnlist in the component NSSF’s...

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 the function ogssbistreamfindbyid in the component NSSF...

PT-2026-38604

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.8 Description A flaw in the NSSF component allows a remote attacker to cause a denial of service through manipulation of the nssf nnrf nsselection handle get from amf or vnssf function located in the...

PT-2026-38606

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 NSSF component. The flaw is located in the ogs sbi discovery option add service names function within the /lib/sbi/message.c library, where specific...

Denial Of Service (DoS)

github.com/free5gc/nssf is vulnerable to Denial of Service DoS. The vulnerability is due to improper handling of crafted POST requests to the NnssfNSSAIAvailability API, which allows an attacker to disrupt service availability...

GO-2025-4163 NSSF panic due to nil pointer dereference when expiry field is omitted in NSSAIAvailability POST in github.com/free5gc/nssf

NSSF panic due to nil pointer dereference when expiry field is omitted in NSSAIAvailability POST in github.com/free5gc/nssf...

NSSF panic due to nil pointer dereference when expiry field is omitted in NSSAIAvailability POST

An issue was discovered in Free5GC v4.0.0 and v4.0.1 allowing an attacker to cause a denial of service via crafted POST request to the NnssfNSSAIAvailability API...

GHSA-F2HJ-VPP9-6VM2 NSSF panic due to nil pointer dereference when expiry field is omitted in NSSAIAvailability POST

An issue was discovered in Free5GC v4.0.0 and v4.0.1 allowing an attacker to cause a denial of service via crafted POST request to the NnssfNSSAIAvailability API...

NSA, CISA Release Guidance on Security Considerations for 5G Network Slicing 

Today, the National Security Agency NSA and CISA published 5G Network Slicing: Security Considerations for Design, Deployment, and Maintenance. This guidance—created by the Enduring Security Framework ESF, a public-private cross-sector working group led by the NSA and CISA—presents recommendation...