CVE-2026-1682

Medium

Description

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.

SeverityMedium

CVSS5.3

Exploit probability—

ProductFree5gc

PublishedJan 30, 2026

First seenJan 30, 2026

Weakness typeCWE-476NULL pointer dereference CWE-404CWE-404

How to fix

Patches

github.com/free5gc/smf/pull/188

Affected products

Product	Affected versions	Fixed in
free5gc free5gc	v ≤ 4.1.0	—

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