OpenAirInterface CN5G AMF<=v2.1.9 has a buffer overflow vulnerability in processing NAS messages. Unauthorized remote attackers can launch a denial-of-service attack and potentially execute malicious code by accessing port N1 and sending an imsi string longer than 1000 to AMF.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 08 Jan 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Openairinterface
Openairinterface cn5g Amf
Vendors & Products Openairinterface
Openairinterface cn5g Amf

Wed, 07 Jan 2026 17:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-121
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 07 Jan 2026 16:30:00 +0000

Type Values Removed Values Added
Description OpenAirInterface CN5G AMF<=v2.1.9 has a buffer overflow vulnerability in processing NAS messages. Unauthorized remote attackers can launch a denial-of-service attack and potentially execute malicious code by accessing port N1 and sending an imsi string longer than 1000 to AMF.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-01-07T16:54:35.621Z

Reserved: 2025-11-18T00:00:00.000Z

Link: CVE-2025-65805

cve-icon Vulnrichment

Updated: 2026-01-07T16:54:29.627Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-01-07T17:16:00.953

Modified: 2026-01-08T18:08:54.147

Link: CVE-2025-65805

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-08T09:49:11Z

Weaknesses