CVE-2026-82589

MEDIUM 4.3

Open5GS N1-N2 Message namf-handler.c amf_namf_comm_handle_n1_n2_message_transfer denial of service

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-404
Vendor	n/a
Product	open5gs
Published	Aug 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / Open5GS

2.7.0 2.7.1 2.7.2 2.7.3 2.7.4 2.7.5 2.7.6 2.7.7

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/397084 vuldb.com: https://vuldb.com/vuln/397084/cti vuldb.com: https://vuldb.com/cve/CVE-2026-82589 vuldb.com: https://vuldb.com/submit/891892 github.com: https://github.com/open5gs/open5gs/issues/4396 github.com: https://github.com/open5gs/open5gs/commit/abf8a836564b966b5141110fc25ed413c4f17522 github.com: https://github.com/open5gs/open5gs/releases/tag/v2.8.0 github.com: https://github.com/open5gs/open5gs/

Credits

🔍 ZiyuLin (VulDB User)