Denial of Service Vulnerability in Open5GS N1-N2 Message Handler
CVE-2026-82589

5.3MEDIUM

Key Information:

Vendor: Open5GS
Status: Open5gs
Vendor: CVE Published:; 30 August 2026

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👾 Exploit Exists🟡 Public PoC

What is CVE-2026-82589?

A security vulnerability exists in Open5GS up to version 2.7.7, specifically in the N1-N2 Message Handler's function amf_namf_comm_handle_n1_n2_message_transfer. This flaw can be exploited remotely by manipulating the N1N2MessageTransferReqData.n2InfoContainer.smInfo.n2InfoContent.ngapIeType argument, leading to a denial of service condition. The issue is publicly known, and upgrading to version 2.8.0 is advised to address this vulnerability. A specific patch has been released to rectify this issue, ensuring improved security for Open5GS users.

Affected Version(s)

Open5GS 2.7.0

Open5GS 2.7.1

Open5GS 2.7.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-82589 - Proof of Concept