CVE-2026-40343

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 1.4.2, a fail-open request handling flaw in the UDR service causes the /nudr-dr/v2/policy-data/subs-to-notify POST handler to continue...

CVE-2026-44317

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's PCF POST /npcf-policyauthorization/v1/app-sessions handler panics on a single authenticated request whose ascReqData.suppFeat == "1" enabling traffic-routing feature negotiation and whose medComponents...

CVE-2026-44320 free5GC: NEF nnef-callback route group is unauthenticated; forged callback requests are accepted into the processing path

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the nnef-callback route group without inbound OAuth2/bearer-token authorization. A forged or arbitrary bearer token e.g. Authorization: Bearer not-a-real-token is enough to reach the SMF-callback...

CVE-2026-41135

CVE-2026-41135 affects free5GC UDR (PCF) prior to version 1.4.3. The root cause is a faulty router.Use() call inside an HTTP handler that registers a new CORS middleware on every incoming request, causing the Gin router to permanently grow its handler chain. This leads to progressive memory exhau...

free5GC 输入验证错误漏洞

free5GC is an open-source project for the 5th generation 5G mobile core network. Versions of free5GC prior to 1.2.2 contained a vulnerability related to input validation errors. This vulnerability stemmed from excessive slicing access within the CHF nchf-convergedcharging service, which could lea...

CVE-2026-27642

In free5GC UDM (Nudm_UEAU), versions up to 1.4.1 are affected. Remote attackers can inject control characters (for example, %00) into the supi parameter, triggering net/url parsing errors and exposing system‑level error details, enabling service fingerprinting. A fix is available via free5gc/udm ...

EUVD-2026-7465

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-2025-69208 free5GC UDR's NEF incorrectly returns 500 for missing PFD data (UDR 404) in Nnef_PfdManagement GET request

free5GC UDR is the user data repository UDR for free5GC, an an open-source project for 5th generation 5G mobile core networks. Versions prior to 1.4.1 contain an Improper Error Handling vulnerability with Information Exposure. All deployments of free5GC using the NnefPfdManagement service may be...

PT-2026-8006

Name of the Vulnerable Software and Affected Versions free5GC version 4.0.1 Description A flaw exists in the AMF component of free5GC that could allow a remote attacker to disrupt service. This happens due to an array index out of bounds condition when processing a specially crafted 5GS Mobile...

CVE-2025-70121

An array index out of bounds vulnerability in the AMF component of free5GC v4.0.1 allows remote attackers to cause a denial of service via a crafted 5GS Mobile Identity in a NAS Registration Request message. The issue occurs in the GetSUCI method NASMobileIdentity5GS.go when accessing index 5 of ...