CVE-2026-7780
Open5GS smf-registrations Endpoint udm-sm.c udm_state_operational denial of service
- State
- Published
- Severity
- 5.3 Medium
- Published
- May 4, 2026
- Updated
- May 5, 2026
- Reserved
- May 4, 2026
Description
A weakness has been identified in Open5GS up to 2.7.7. Affected by this vulnerability is the function udm_state_operational of the file /src/udm/udm-sm.c of the component smf-registrations Endpoint. Executing a manipulation can lead to denial of service. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 4.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 4.0 Medium | AV:N/AC:L/Au:S/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-360977 | Open5GS smf-registrations Endpoint udm-sm.c udm_state_operational denial of servicevdb-entrytechnical-description
- VDB-360977 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #806250 | Open5gs UDM v2.7.7 Denial of Servicethird-party-advisory
- https://github.com/open5gs/open5gs/issues/4419exploitissue-tracking
- https://github.com/open5gs/open5gs/product
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