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critical advisory

free5GC NEF nnef-pfdmanagement API Unauthenticated Access Vulnerability

free5GC's NEF nnef-pfdmanagement API is vulnerable to unauthenticated access, allowing attackers with network access to read PFD data and create/delete PFD subscriptions by using forged bearer tokens due to the absence of inbound OAuth2/bearer-token authorization.

nef free5GC unauthenticated access CVE-2026-44330 PFD management network security
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