CVE-2026-30653 Details
Description
An issue in Free5GC v.4.2.0 and before allows a remote attacker to cause a denial of service via the function HandleAuthenticationFailure of the component AMF
A denial-of-service vulnerability has been identified in Free5GC versions through 4.2.0. When the Access and Mobility Management Function (AMF) receives an AuthenticationFailure NAS message, the process crashes due to a nil pointer dereference. This issue can be exploited by sending an AuthenticationFailure message after a RegistrationRequest, causing the AMF process to panic and terminate.
Users can apply the fix available in Free5GC AMF pull request #199, which adds a null pointer check for the Authentication Context before handling AuthenticationFailure messages.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 24, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/free5gc/free5gc/issues/826 | [email protected] | ExploitIssue TrackingVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
| CWE-400 | Uncontrolled Resource Consumption | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| free5gc free5gc | <= 4.2.0 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 24, 2026 | CVE Modified | CISA-ADP |
| Mar 24, 2026 | Initial Analysis | [email protected] |
| Mar 24, 2026 | New CVE Received | [email protected] |