CVE-2025-65805: Buffer Overflow

Published Jan 7, 2026
·
Updated

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.

Affected Software

2 affected components
openairinterface CN5G AMF<=2.1.9
openairinterface Oai-cn5g-amf<=2.1.9

Event History

Jan 7, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·05:16 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2025-65805?

CVE-2025-65805 is considered a critical vulnerability due to its potential to allow remote denial-of-service attacks and arbitrary code execution.

2

How do I fix CVE-2025-65805?

To mitigate CVE-2025-65805, upgrade OpenAirInterface CN5G AMF to version 2.2.0 or later that addresses this buffer overflow vulnerability.

3

What kind of attacks can CVE-2025-65805 be exploited for?

CVE-2025-65805 can be exploited to launch denial-of-service attacks and potentially execute malicious code on the affected system.

4

Which versions of OpenAirInterface CN5G AMF are affected by CVE-2025-65805?

All versions of OpenAirInterface CN5G AMF up to and including v2.1.9 are affected by CVE-2025-65805.

5

What is the cause of the CVE-2025-65805 vulnerability?

CVE-2025-65805 is caused by a buffer overflow that occurs when processing NAS messages with excessively long imsi strings.

Contact

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