CVE-2026-8123
Open5GS NSSF message.c ogs_sbi_discovery_option_add_snssais denial of service
- State
- Published
- Severity
- 5.3 Medium
- Published
- May 8, 2026
- Updated
- May 8, 2026
- Reserved
- May 7, 2026
Description
A vulnerability was determined in Open5GS up to 2.7.7. This impacts the function ogs_sbi_discovery_option_add_snssais in the library /lib/sbi/message.c of the component NSSF. This manipulation causes denial of service. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. 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-361910 | Open5GS NSSF message.c ogs_sbi_discovery_option_add_snssais denial of servicevdb-entrytechnical-description
- VDB-361910 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #808426 | Open5gs NSSF v2.7.7 Denial of Servicethird-party-advisory
- https://github.com/open5gs/open5gs/issues/4436exploitissue-tracking
- https://github.com/open5gs/open5gs/product
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