CVE-2026-1973: FREE5GC

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

A vulnerability was determined in Free5GC up to 4.1.0. The impacted element is the function establishPfcpSession of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. It is best practice to apply a patch to resolve this issue.

Affected products

• FREE5GC FREE5GC: up to and including 4.1.0

Published 2026-02-06. Last modified 2026-06-17.