Home/CVE/In OpenAirInterface V2.2.0 AMF, Out of sequence messages causes incorrect state transition during UE registration proced
CVE

CVE-2026-30079

In OpenAirInterface V2.2.0 AMF, Out of sequence messages causes incorrect state transition during UE registration proced

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.

CRITICAL · CVSS 9.8 EPSS 0.00032
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-288Authentication Bypass Using an Alternate Path or Channel
▤

Affected Products & Versions

1
openairinterface oai-cn5g-amfall versions
⚠

Public Exploits & PoCs

1
pocgitlab.eurecom.fr · issues/77gitlab.eurecom.fr
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD07 Apr 2026 · 03:17 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
total
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