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.
Published: 2026-01-07
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 29 Jan 2026 01:15:00 +0000

Type Values Removed Values Added
First Time appeared Openairinterface oai-cn5g-amf
CPEs cpe:2.3:a:openairinterface:oai-cn5g-amf:*:*:*:*:*:*:*:*
Vendors & Products Openairinterface oai-cn5g-amf

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

Subscriptions

Openairinterface Cn5g Amf Oai-cn5g-amf
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 : Analyzed

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

Modified: 2026-01-29T01:12:10.790

Link: CVE-2025-65805

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses