CVE-2026-30070
Received Received - Intake

Denial of Service in free5gc v4.0.1

Publication date: 2026-08-27

Last updated on: 2026-08-27

Assigner: MITRE

Description
An issue in the HandleGetSharedData function of free5gc v4.0.1 allows attackers to cause a Denial of Service (DoS) via a crafted input.

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Meta Information

Published
2026-08-27
Last Modified
2026-08-27
Generated
2026-08-27
AI Q&A
2026-08-27
EPSS Evaluated
N/A
NVD
CVE-2026-30070
EUVD
EUVD-2026-67118

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
free5gc free5gc 4.0.1

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a Denial of Service (DoS) issue in the free5GC project's UDM component. It occurs in the HandleGetSharedData function when the 'supported-features' query parameter is missing. The function crashes due to an unchecked empty slice access, causing a runtime panic and service instability.

Detection Guidance

Monitor the free5GC UDM service logs for runtime panics or errors related to 'index out of range [0] with length 0' in the HandleGetSharedData function. Check for service instability or crashes when the 'supported-features' query parameter is missing in requests.

Impact Analysis

The vulnerability can cause your free5GC service to crash or become unstable, leading to service disruptions. This may result in downtime for network functions relying on the UDM component, affecting overall system availability.

Mitigation Strategies

Apply a patch or update to free5GC that fixes the missing check for the 'supported-features' parameter in HandleGetSharedData. Alternatively, implement input validation to handle missing parameters safely or return a 400 Bad Request error.

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