CVE-2026-5661
Free5GC NGSetupRequest denial of service
- State
- Published
- Severity
- 6.9 Medium
- Published
- Apr 6, 2026
- Updated
- Apr 6, 2026
- Reserved
- Apr 6, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | 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 | VulDB |
| 3.1 | 5.3 Medium | 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 | VulDB |
| 3.0 | 5.3 Medium | 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 | VulDB |
| 2.0 | 5.0 Medium | AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-404 Denial of Service
Affected Products
| Product | Versions |
|---|---|
Free5GCn/a |
|
References
- VDB-355485 | Free5GC NGSetupRequest denial of servicevdb-entry
- VDB-355485 | CTI Indicators (IOB, IOC, TTP)signaturepermissions-required
- Submit #785896 | Linux Foundation free5GC 4.2.0 State Synchronization Errorthird-party-advisory
- https://github.com/free5gc/free5gc/issues/832issue-tracking
- https://github.com/free5gc/amf/pull/201issue-trackingpatch
- https://github.com/user-attachments/files/25581199/amfcfg.yamlexploit
- https://github.com/free5gc/free5gc/product
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