CVE-2026-1682

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.

• CWE-404
• CWE-476

• https://github.com/free5gc/free5gc/issues/794Exploit, Issue Tracking, Vendor Advisory
• https://github.com/free5gc/free5gc/issues/794#issue-3811888505Exploit, Issue Tracking, Vendor Advisory
• https://github.com/free5gc/free5gc/issues/794#issuecomment-3761063382Issue Tracking
• https://github.com/free5gc/smf/
• https://github.com/free5gc/smf/pull/188Issue Tracking
• https://vuldb.com/?ctiid.343475Permissions Required, VDB Entry
• https://vuldb.com/?id.343475Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.739508Third Party Advisory, VDB Entry

Published

Jan 30, 2026

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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