CVE-2026-5661: Denial of Service in Free5GC
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.
AI Analysis
Technical Summary
This vulnerability in Free5GC 4.2.0 involves the NGSetupRequest Handler component, where crafted input can lead to denial of service. The attack vector is network-based with no required privileges or user interaction, making it remotely exploitable. The CVSS 4.0 base score is 6.9, indicating a medium severity impact primarily due to service disruption. No detailed technical information about the exact flaw or mitigation is currently available.
Potential Impact
Successful exploitation results in denial of service, potentially disrupting the availability of the affected Free5GC component. This could impact 5G core network operations relying on this version of Free5GC. There is no indication of data confidentiality or integrity compromise. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider limiting exposure of the affected component to untrusted networks and monitor for unusual NGSetupRequest activity. Avoid deploying Free5GC 4.2.0 in production environments if possible until patched.
CVE-2026-5661: Denial of Service in Free5GC
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Free5GC 4.2.0 involves the NGSetupRequest Handler component, where crafted input can lead to denial of service. The attack vector is network-based with no required privileges or user interaction, making it remotely exploitable. The CVSS 4.0 base score is 6.9, indicating a medium severity impact primarily due to service disruption. No detailed technical information about the exact flaw or mitigation is currently available.
Potential Impact
Successful exploitation results in denial of service, potentially disrupting the availability of the affected Free5GC component. This could impact 5G core network operations relying on this version of Free5GC. There is no indication of data confidentiality or integrity compromise. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider limiting exposure of the affected component to untrusted networks and monitor for unusual NGSetupRequest activity. Avoid deploying Free5GC 4.2.0 in production environments if possible until patched.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-06T07:48:14.498Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d3c3860a160ebd92bdb615
Added to database: 4/6/2026, 2:30:30 PM
Last enriched: 4/6/2026, 2:45:37 PM
Last updated: 4/6/2026, 3:40:05 PM
Views: 3
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