CVE-2026-30080 — HIGH (7.5)

Vulnerability Description

OpenAirInterface v2.2.0 accepts Security Mode Complete without any integrity protection. Configuration has supported integrity NIA1 and NIA2. But if an UE sends initial registration request with only security capability IA0, OpenAirInterface accepts and proceeds. This downgrade security context can lead to the possibility of replay attack.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Openairinterface	Oai-Cn5G-Amf	2.2.0

Related Weaknesses (CWE)

CWE-294

References

https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-amf/-/issues/78ExploitIssue TrackingThird Party Advisory
https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-amf/-/issues/78ExploitIssue TrackingThird Party Advisory

FAQ

What is CVE-2026-30080?

CVE-2026-30080 is a vulnerability with a CVSS score of 7.5 (HIGH). OpenAirInterface v2.2.0 accepts Security Mode Complete without any integrity protection. Configuration has supported integrity NIA1 and NIA2. But if an UE sends initial registration request with only ...

How severe is CVE-2026-30080?

CVE-2026-30080 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-30080?

Check the references section above for vendor advisories and patch information. Affected products include: Openairinterface Oai-Cn5G-Amf.