CVE-2026-5661

Free5GC NGSetupRequest denial of service

MEDIUM
5.3
CVSS Score
Published: April 6, 2026 at 02:08 PM UTC
Updated: June 17, 2026 at 10:59 AM UTC
1 product affected across 1 vendorFREE5GC

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (7)

VDB Entry
Source: cverecord
https://vuldb.com/vuln/355485
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/355485/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/785896
Issue Tracking
Source: cverecord
https://github.com/free5gc/free5gc/issues/832
Issue TrackingPatch
Source: cverecord
https://github.com/free5gc/amf/pull/201
Product
Source: cverecord
https://github.com/free5gc/free5gc/

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-404

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