CVE-2026-8222
Open5GS sm-policies Endpoint nbsf-handler.c pcf_nbsf_management_handle_register denial of service
- State
- Published
- Severity
- 6.9 Medium
- Published
- May 10, 2026
- Updated
- May 12, 2026
- Reserved
- May 9, 2026
Description
A vulnerability has been found in Open5GS up to 2.7.7. Affected is the function pcf_nbsf_management_handle_register of the file src/pcf/nbsf-handler.c of the component sm-policies Endpoint. Such manipulation leads to denial of service. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
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 |
|---|---|
Open5GSn/a |
|
References
- VDB-362439 | Open5GS sm-policies Endpoint nbsf-handler.c pcf_nbsf_management_handle_register denial of servicevdb-entrytechnical-description
- VDB-362439 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #808427 | Open5gs PCF v2.7.7 Denial of Servicethird-party-advisory
- https://github.com/open5gs/open5gs/issues/4437exploitissue-tracking
- https://github.com/open5gs/open5gs/product
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