CVE-2026-8123 | THREATINT

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.

PUBLISHED Reserved 2026-05-07 | Published 2026-05-08 | Updated 2026-05-08 | Assigner VulDB

MEDIUM: 5.3CVSS: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

MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

MEDIUM: 4.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

4.0AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

Problem types

Denial of Service

Timeline

2026-05-07:	Advisory disclosed
2026-05-07:	VulDB entry created
2026-05-07:	VulDB entry last update

Credits

LinZiyu (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/361910 (VDB-361910 | Open5GS NSSF message.c ogs_sbi_discovery_option_add_snssais denial of service) vdb-entry technical-description

vuldb.com/vuln/361910/cti (VDB-361910 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/808426 (Submit #808426 | Open5gs NSSF v2.7.7 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4436 exploit issue-tracking

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-8123)

nvd.nist.gov (CVE-2026-8123)

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