CVE-2026-30079 | In OpenAirInterface V2.2.0 AMF, Out of sequence messages cau… | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2026-30079
State: PUBLISHED
Assigner: mitre
Reserved: 2026-03-04 00:00 UTC
Published: 2026-04-07 00:00 UTC
Last updated: 2026-04-09 13:47 UTC
Primary CWE: CWE-288
CWE-288 Authentication Bypass Using an Alternate Path or Cha…
Vendor / Product: n/a / n/a
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
n/a	n/a	—	n/a

Weakness (CWE)

CWE	Source	Description
—	cna	n/a
CWE-288	adp	CWE-288 Authentication Bypass Using an Alternate Path or Channel

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (1)

https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-amf/-/issues/77