CVE-2025-65805: OpenAirInterface CN5G AMF<=v2.1.9 has a buffer overflow vulnerability in processing NAS messages. Unauthorized remote at

OpenAirInterface CN5G AMF (a software component for handling mobile network communications) version 2.1.9 and earlier contains a buffer overflow vulnerability (a memory safety bug where data exceeds allocated space) in how it processes NAS messages (protocol messages used in mobile networks). Remote attackers without authorization can exploit this by sending an unusually long IMSI string (a mobile subscriber identifier) through port N1, potentially crashing the system or running malicious code.