CVE-2026-30653: FREE5GC

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

An issue in Free5GC v.4.2.0 and before allows a remote attacker to cause a denial of service via the function HandleAuthenticationFailure of the component AMF

Affected products

• FREE5GC FREE5GC: up to and including 4.2.0

Published 2026-03-24. Last modified 2026-06-17.