CVE-2026-82589

Medium

Description

A security flaw has been discovered in Open5GS up to 2.7.7. Impacted is the function amf_namf_comm_handle_n1_n2_message_transfer of the file src/amf/namf-handler.c of the component N1-N2 Message Handler. Performing a manipulation of the argument N1N2MessageTransferReqData.n2InfoContainer.smInfo.n2InfoContent.ngapIeType results in denial of service. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 2.8.0 is recommended to address this issue. The patch is named abf8a836564b966b5141110fc25ed413c4f17522. It is advisable to upgrade the affected component.

SeverityMedium
CVSS4.3
Exploit probability46. percentile0.5%
ProductOpen5gs
PublishedAug 30, 2026
First seenAug 30, 2026
Weakness typeCWE-404CWE-404

How to fix

Affected products

ProductAffected versionsFixed in
open5gs open5gs2.7.0, 2.7.1, 2.7.2, 2.7.3, 2.7.4, 2.7.5, 2.7.6, 2.7.7—

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