In OpenAirInterface V2.2.0 AMF, Out of sequence messages causes incorrect state…
Priority MEDIUM 50CWE-288Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-288.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00546 46th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openairinterface:oai-cn5g-amf:2.2.0:*:*:*:*:*:*:* | 2.2.0 | Vulnerable | Openairinterface |
- cpe:2.3:a:openairinterface:oai-cn5g-amf:2.2.0:*:*:*:*:*:*:* Versions 2.2.0 Vulnerable ·Openairinterface
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-30079
- 2026-10-03 Alias added: GHSA-j69j-3gv3-pwvg
- 2026-10-11 EPSS moved to the 50th–90th percentile
- 2026-10-25 EPSS moved to the below the 50th percentile
References
More Openairinterface Oai-cn5g-amf vulnerabilities
- TI-2026-23446 OpenAirInterface v2.2.0 accepts Security Mode Complete without any integrity protection. CVSS 3.1HIGH 7.5
- TI-2026-23444 OpenAirInterface V2.2.0 AMF crashes when it receives an NGAP message with invalid… CVSS 3.1HIGH 7.5
- TI-2026-23442 OpenAirInterface Version 2.2.0 has a Buffer Overflow vulnerability in processing… CVSS 3.1HIGH 7.5
- TI-2025-41054 OpenAirInterface CN5G AMF<=v2.0.1 There is a logical error when processing JSON format… CVSS 3.1HIGH 7.5
- TI-2025-40453 OpenAirInterface CN5G AMF<=v2.1.9 has a buffer overflow vulnerability in processing NAS… CVSS 3.1HIGH 7.5
Sources
- CVE-2026-30079 · CVE Program
- CVE-2026-30079 · NVD
- FIRST EPSS
- GHSA-j69j-3gv3-pwvg · GitHub Advisory Database · CC BY 4.0
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