CVE-2026-30051: Free5gc Free5gc vulnerability
Published Aug 27, 2026
·Updated
An issue in the CreateUEContextProcedure function (/v1/ue-contexts/{supi}) of free5gc v4.1.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted PUT request.
Affected Software
1 affected component
free5gc Free5gc=4.1.0
Event History
Aug 27, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·05:17 PM
Description
Frequently Asked Questions
1
Which deployments are potentially exposed?
Deployments running free5gc v4.1.0 are potentially exposed if the CreateUEContextProcedure endpoint at /v1/ue-contexts/{supi} accepts PUT requests.
2
What does an attacker need to trigger the issue?
An attacker needs to send a crafted PUT request to the /v1/ue-contexts/{supi} endpoint. The available information does not state whether authentication or other access controls are required.