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CVE-2026-44321

HIGH · CVSS 7.5 EPSS %0.36 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-05-27T17:16:37.330 · Çekilme zamanı: 2026-06-25T12:11:59.508216+00:00

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Public Exploit Sinyali

Bu CVE için açıklama veya referanslarda public exploit / PoC / GitHub / Metasploit sinyali tespit edildi.

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CVE
CVE-2026-44321
Severity
HIGH
CVSS
7.5
EPSS
%0.36
Docker

Orijinal NVD Açıklaması

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 UpNodesFromConfiguration(), which calls logger.InitLog.Fatalf(...) on several validation failures. One confirmed path is the UE-IP-pool overlap check: a single unauthenticated POST that adds a new UPF whose pool overlaps an existing UPF terminates the entire SMF process (docker ps shows Exited (1)), not just the goroutine. This vulnerability is fixed in 4.2.2.