CVE-2026-30056 — HIGH (7.5)

Vulnerability Description

A NULL pointer dereference in the AMF NGAP Dispatcher component of free5gc v4.0.1 allows attackers to cause a Denial of Service (DoS) via supplying crafted NGAP messages during the initialization of a new RAN connection.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Related Weaknesses (CWE)

CWE-476

References

https://github.com/free5gc/free5gc/issues/768

FAQ

What is CVE-2026-30056?

CVE-2026-30056 is a vulnerability with a CVSS score of 7.5 (HIGH). A NULL pointer dereference in the AMF NGAP Dispatcher component of free5gc v4.0.1 allows attackers to cause a Denial of Service (DoS) via supplying crafted NGAP messages during the initialization of a...

How severe is CVE-2026-30056?

CVE-2026-30056 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-2026-30056?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.