In OpenAirInterface V2.2.0 AMF, Out of sequence messages causes incorrect state transition during UE registration procedure. This allows authentication to be bypassed completely. If a SecurityModeComplete message is sent after InitialUERegistration, a registration reject is received followed by a registration accept! This leads the UE to be registered without proper authentication.
Metrics
Affected Vendors & Products
| Vendors | Products |
|---|---|
| Openairinterface |
|
No data.
No data.
References
| Link | Providers |
|---|---|
| https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-amf/-/issues/77 |
|
History
Thu, 09 Apr 2026 08:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Openairinterface
Openairinterface oai-cn5g-amf |
|
| Vendors & Products |
Openairinterface
Openairinterface oai-cn5g-amf |
Wed, 08 Apr 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Authentication Bypass via Out-of-Sequence Messages in OpenAirInterface AMF | |
| Weaknesses | CWE-287 |
Tue, 07 Apr 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In OpenAirInterface V2.2.0 AMF, Out of sequence messages causes incorrect state transition during UE registration procedure. This allows authentication to be bypassed completely. If a SecurityModeComplete message is sent after InitialUERegistration, a registration reject is received followed by a registration accept! This leads the UE to be registered without proper authentication. | |
| References |
|
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2026-04-07T00:00:00.000Z
Updated: 2026-04-07T14:29:16.535Z
Reserved: 2026-03-04T00:00:00.000Z
Link: CVE-2026-30079
Vulnrichment
No data.
NVD
Status : Awaiting Analysis
Published: 2026-04-07T15:17:38.267
Modified: 2026-04-08T21:27:15.610
Link: CVE-2026-30079
Redhat
No data.