CVE-2026-44321 free5GC: SMF UPI POST /upi/v1/upNodesLinks exits the SMF process on overlapping UE pools (unauthenticated, reachable Fatalf)

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. The POST /upi/v1/upNodesLinks create-or-update handler accepts attacker-controlled JSON and passes it directly into...

CVE-2026-8290 Open5GS SMF nsmf-handler.c smf_nsmf_handle_update_data_in_vsmf denial of service

A security flaw has been discovered in Open5GS up to 2.7.7. This issue affects the function smfnsmfhandleupdatedatainvsmf of the file /src/smf/nsmf-handler.c of the component SMF. The manipulation results in denial of service. The attack can be executed remotely. The exploit has been released to...

CVE-2026-8289

Technical details (affected software, root cause, impact, and remediation) are not publicly available in the provided documents. Monitor for updates.

EUVD-2026-29024

A flaw has been found in Open5GS up to 2.7.7. This vulnerability affects the function smfnsmfhandlecreateddatainvsmf of the component SMF. This manipulation causes denial of service. The attack may be initiated remotely. The exploit has been published and may be used. The project was informed of...

CVE-2026-8266 Open5GS SMF gsm-build.c gsm_build_pdu_session_establishment_accept denial of service

A vulnerability was detected in Open5GS up to 2.7.7. This affects the function gsmbuildpdusessionestablishmentaccept of the file /src/smf/gsm-build.c of the component SMF. The manipulation results in denial of service. The attack can be launched remotely. The exploit is now public and may be used...

CVE-2026-8266 Open5GS SMF gsm-build.c gsm_build_pdu_session_establishment_accept denial of service

A vulnerability was detected in Open5GS up to 2.7.7. This affects the function gsmbuildpdusessionestablishmentaccept of the file /src/smf/gsm-build.c of the component SMF. The manipulation results in denial of service. The attack can be launched remotely. The exploit is now public and may be used...

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 a function in the SMF component called...

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 smfnsmfhandlecreateddatainvsmf in the SMF component...

CVE-2026-8251 Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service

A vulnerability was found in Open5GS up to 2.7.7. This impacts the function updateauthorizedpccruleandqos of the file /src/smf/npcf-handler.c of the component SMF. Performing a manipulation results in denial of service. The attack is possible to be carried out remotely. The exploit has been made...

CVE-2026-8251 Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service

A vulnerability was found in Open5GS up to 2.7.7. This impacts the function updateauthorizedpccruleandqos of the file /src/smf/npcf-handler.c of the component SMF. Performing a manipulation results in denial of service. The attack is possible to be carried out remotely. The exploit has been made...

CVE-2026-8250 Open5GS SMF n4-build.c smf_n4_build_qos_flow_to_modify_list denial of service

A vulnerability has been found in Open5GS up to 2.7.7. This affects the function smfn4buildqosflowtomodifylist of the file /src/smf/n4-build.c of the component SMF. Such manipulation leads to denial of service. The attack can be executed remotely. The exploit has been disclosed to the public and...

CVE-2026-8249 Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service

A flaw has been found in Open5GS up to 2.7.7. The impacted element is the function updateauthorizedpccruleandqos of the file /src/smf/npcf-handler.c of the component SMF. This manipulation causes denial of service. Remote exploitation of the attack is possible. The exploit has been published and...

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 updateauthorizedpccruleandqos function in the SMF component...

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 a function in the SMF component file/src/smf/n4-build.c called...

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 prior to 2.7.5 contained security vulnerabilities. These vulnerabilities stemmed from assertion failures in the PCO parser within the SMF component,...

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...

EUVD-2025-209599

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-2026-25501

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...

CVE-2026-26025

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...