CVE-2026-30080
OpenAirInterface Replay Attack
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.
INFO
Published Date :
April 8, 2026, 5:21 p.m.
Last Modified :
April 14, 2026, 3:47 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Configure OpenAirInterface to require integrity protection.
- Update OpenAirInterface to the latest secure version.
- Disable support for IA0 security context.
- Validate UE security capabilities during registration.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-30080.
| URL | Resource |
|---|---|
| https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-amf/-/issues/78 | Exploit Issue Tracking Third Party Advisory |
| https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-amf/-/issues/78 | Exploit Issue Tracking Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-30080 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-30080
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-30080 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-30080 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 14, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:openairinterface:oai-cn5g-amf:2.2.0:*:*:*:*:*:*:* Added Reference Type MITRE: https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-amf/-/issues/78 Types: Exploit, Issue Tracking, Third Party Advisory Added Reference Type CISA-ADP: https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-amf/-/issues/78 Types: Exploit, Issue Tracking, Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 09, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Added CWE CWE-294 Added Reference https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-amf/-/issues/78 -
New CVE Received by [email protected]
Apr. 08, 2026
Action Type Old Value New Value Added 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. Added Reference https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-amf/-/issues/78