free5GC 安全漏洞

free5GC is an open-source project for the 5th generation 5G mobile core network. Versions of free5GC prior to 4.2.2 contained security vulnerabilities. These vulnerabilities stemmed from the lack of inbound OAuth2/bearer-token authorization when the NEF route group nnef-pfdmanagement was mounted...

CVE-2026-44330: Incorrect Authorization

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the nnef-pfdmanagement route group without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can use a forged or arbitrary bearer token e.g. Authorization...

CVE-2026-44327: Missing Authentication for Critical Function

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the nnef-oam route group without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can hit the OAM route with no Authorization header at all and the handl...

CVE-2026-27643

free5GC UDR is the user data repository UDR for free5GC, an an open-source project for 5th generation 5G mobile core networks. In versions up to and including 1.4.1, the NEF component reliably leaks internal parsing error details e.g., invalid character 'n' after top-level value to remote clients...

Information Exposure

Overview Affected versions of this package are vulnerable to Information Exposure via the NnefPfdManagement process. An attacker can obtain internal parsing error details by sending malformed requests to the NEF component, which may assist in service fingerprinting. Remediation Upgrade...

Information Exposure

Overview Affected versions of this package are vulnerable to Information Exposure via the NnefPfdManagement service in the NEF component. An attacker can obtain internal parsing error details by sending malformed requests, which may facilitate service fingerprinting. Remediation Upgrade...

EUVD-2026-7462

free5GC UDR is the user data repository UDR for free5GC, an an open-source project for 5th generation 5G mobile core networks. In versions up to and including 1.4.1, the NEF component reliably leaks internal parsing error details e.g., invalid character 'n' after top-level value to remote clients...

CVE-2025-69253

free5GC is an open-source project for 5th generation 5G mobile core networks. Versions up to and including 1.4.1 of the User Data Repository are affected by Improper Error Handling with Information Exposure. The NEF component reliably leaks internal parsing error details e.g., invalid character '...

EUVD-2025-207565

free5GC is an open-source project for 5th generation 5G mobile core networks. Versions up to and including 1.4.1 of the User Data Repository are affected by Improper Error Handling with Information Exposure. The NEF component reliably leaks internal parsing error details e.g., invalid character '...