A vulnerability was identified in Free5GC 4.2.0. This affects an unknown function of the component NGSetupRequest Handler. Such manipulation leads to denial of service. The attack may be launched remotely. The exploit is publicly available and might be used.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a Free5GC affected
Version Status Constraints
4.2.0 affected —

No data.

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Project Subscriptions

Vendors Products
Free5gc Subscribe
Free5gc Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/free5gc/amf/pull/201 cve-icon cve-icon
https://github.com/free5gc/free5gc/ cve-icon cve-icon
https://github.com/free5gc/free5gc/issues/832 cve-icon cve-icon
https://github.com/user-attachments/files/25581199/amfcfg.yaml cve-icon cve-icon
https://vuldb.com/submit/785896 cve-icon cve-icon
https://vuldb.com/vuln/355485 cve-icon cve-icon
https://vuldb.com/vuln/355485/cti cve-icon cve-icon
History

Mon, 06 Apr 2026 15:30:00 +0000

Type Values Removed Values Added
Description A vulnerability was identified in Free5GC 4.2.0. This affects an unknown function of the component NGSetupRequest Handler. Such manipulation leads to denial of service. The attack may be launched remotely. The exploit is publicly available and might be used.
Title Free5GC NGSetupRequest denial of service
First Time appeared Free5gc
Free5gc free5gc
Weaknesses CWE-404
CPEs cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*
Vendors & Products Free5gc
Free5gc free5gc
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-04-06T14:55:09.634Z

Reserved: 2026-04-06T07:48:14.498Z

Link: CVE-2026-5661

cve-icon Vulnrichment

Updated: 2026-04-06T14:54:19.016Z

cve-icon NVD

Status : Received

Published: 2026-04-06T15:17:15.960

Modified: 2026-04-06T15:17:15.960

Link: CVE-2026-5661

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses