CVE-2026-1682: FREE5GC

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

A flaw has been found in Free5GC SMF up to 4.1.0. Affected is the function HandlePfcpAssociationReleaseRequest of the file internal/pfcp/handler/handler.go of the component PFCP UDP Endpoint. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been published and may be used. A patch should be applied to remediate this issue.

Affected products

• FREE5GC FREE5GC: up to and including 4.1.0

Published 2026-01-30. Last modified 2026-06-17.