CVE-2026-30075

What it is

OpenAirInterface Version 2.2.0 has a Buffer Overflow vulnerability in processing UplinkNASTransport containing Authentication Response containing a NAS PDU with oversize response (For example 100 byte). The response is decoded by AMF and passed to the AUSF component for verification. AUSF crashes on receiving this oversize response. This can prohibit users from further registration and verification and can cause Denial of Services (DoS).

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of service disruption.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2026-04-08 17:21 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-07-25 10:10 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.4% in the next 30 days (EPSS).
• Severity: 7.5 HIGH (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2026-04-08 17:21 UTC

Last modified

2026-07-25 10:10 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-120 · Classic buffer overflow

Record status

Analyzed

Affected

• Openairinterface oai-cn5g-amf 2.2.0

Attack profile CVSS 3.1 · 7.5

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-30075.md and follow it. Check whether this project is affected by CVE-2026-30075. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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