CVE-2025-56394: FREE5GC

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

Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile identity, resulting in slice reference overflow.

Affected products

• FREE5GC FREE5GC: version 4.0.1 only

Published 2025-09-23. Last modified 2026-06-17.