CVE-2026-4988

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...

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...

CVE-2026-4988

Open5GS 2.7.6 contains a denial-of-service vulnerability in the CCA Message Handler, affecting the functions smf_gx_cca_cb, smf_gy_cca_cb, and smf_s6b. The issue can be triggered remotely and stems from the manipulation of the mentioned components. Exploitability is described as difficult, and ex...

PT-2026-28707

Name of the Vulnerable Software and Affected Versions Open5GS version 2.7.6 Description A security flaw exists in Open5GS 2.7.6, specifically within the CCA Message Handler component and the smf gx cca cb/smf gy cca cb/smf s6b function. This manipulation can lead to a denial of service. The attac...

Open5GS security vulnerabilities

Open5GS is an open-source implementation of 5G Core and EPC in C language, which serves as the core network for Lte/Nr networks. Version 2.7.6 of Open5GS contains a security vulnerability. This vulnerability stems from defects in the CCA message processing function, which may lead to...

CVE-2026-4988: Improper Resource Shutdown or Release

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...

CVE-2026-4240

A vulnerability was determined in Open5GS up to 2.7.6. The affected element is the function smfgxccacb/smfgyccacb/smfs6baaacb/smfs6bstacb of the component CCA Handler. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly disclosed and may...

Open5GS Denial of Service Vulnerability (CNVD-2026-14249)

Open5GS is Open5GS open source an open source implementation in C of 5G Core and Epc, the core network of the Lte/Nr network. A denial of service vulnerability exists in Open5GS version 2.7.6 and earlier. The vulnerability stems from the function smfgxccacb/smfgyccacb/smfs6baaacb/smfs6bstacb of t...

EUVD-2026-12433

A vulnerability was determined in Open5GS up to 2.7.6. The affected element is the function smfgxccacb/smfgyccacb/smfs6baaacb/smfs6bstacb of the component CCA Handler. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly disclosed and may...

CVE-2026-4240

A vulnerability was determined in Open5GS up to 2.7.6. The affected element is the function smfgxccacb/smfgyccacb/smfs6baaacb/smfs6bstacb of the component CCA Handler. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly disclosed and may...

CVE-2026-4240 Open5GS CCA smf_s6b_sta_cb denial of service

A vulnerability was determined in Open5GS up to 2.7.6. The affected element is the function smfgxccacb/smfgyccacb/smfs6baaacb/smfs6bstacb of the component CCA Handler. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly disclosed and may...

CVE-2026-4240 Open5GS CCA smf_s6b_sta_cb denial of service

A vulnerability was determined in Open5GS up to 2.7.6. The affected element is the function smfgxccacb/smfgyccacb/smfs6baaacb/smfs6bstacb of the component CCA Handler. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly disclosed and may...

CVE-2026-4240 Open5GS CCA smf_s6b_sta_cb denial of service

A vulnerability was determined in Open5GS up to 2.7.6. The affected element is the function smfgxccacb/smfgyccacb/smfs6baaacb/smfs6bstacb of the component CCA Handler. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly disclosed and may...

CVE-2026-4240

Open5GS CVE-2026-4240 affects the CCA Handler in versions up to 2.7.6. The vulnerable functions are smf_gx_cca_cb, smf_gy_cca_cb, smf_s6b_aaa_cb, and smf_s6b_sta_cb. Root cause: improper handling in the CCA Handler leads to denial of service. Impact is remote, with no authentication required for ...

CVE-2026-4240: Improper Resource Shutdown or Release

A vulnerability was determined in Open5GS up to 2.7.6. The affected element is the function smfgxccacb/smfgyccacb/smfs6baaacb/smfs6bstacb of the component CCA Handler. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly disclosed and may...

Open5GS security vulnerabilities

Open5GS is Open5GS open source an open source implementation in C of 5G Core and Epc, the core network of the Lte/Nr network. A denial of service vulnerability exists in Open5GS version 2.7.6 and earlier. The vulnerability stems from the function smfgxccacb/smfgyccacb/smfs6baaacb/smfs6bstacb of t...

PT-2026-25744

Name of the Vulnerable Software and Affected Versions Open5GS versions up to 2.7.6 Description A flaw exists in Open5GS that can lead to a denial of service. The issue is located within the smf gx cca cb/smf gy cca cb/smf s6b aaa cb/smf s6b sta cb function of the CCA Handler component. This...

SMF Component Heap Buffer Overflow DoS

The vulnerability of the ogsgtp2parsetft function in the SMF component, which is used for creating and managing NR/LTE Open5GS mobile networks, is related to improper cleaning or release of resources. Exploiting this vulnerability could allow a malicious actor to cause service interruptions...

smf_gn_handle_create_pdp_context_request DoS

The vulnerability of the smfgnhandlecreatepdpcontextrequest function in the /src/smf/gn-handler.c file, which is used for creating and managing NR/LTE Open5GS mobile networks, is related to an uncontrolled, exploitable flaw. Exploiting this vulnerability could allow a malicious actor to cause...

MME Mobility Management Buffer Overflow DoS

The vulnerability of the mmes11handlecreatesessionresponse function in the MME mobility management component, which is used for creating and managing NR/LTE Open5GS mobile networks, is related to improper cleaning or release of resources. Exploiting this vulnerability could allow a malicious acto...