CVE-2025-65805: Openairinterface Oai-CN5G-Amf

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

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 products

• Openairinterface Oai-CN5G-Amf: up to and including 2.1.9

Published 2026-01-07. Last modified 2026-06-17.