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Description

A vulnerability was found in Open5GS up to 2.7.7. This affects the function ogs_sbi_discovery_option_add_service_names in the library /lib/sbi/message.c of the component NSSF. The manipulation results in denial of service. The attack may be performed from remote. The exploit has been made public and could be used. 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/361909 (VDB-361909 | Open5GS NSSF message.c ogs_sbi_discovery_option_add_service_names denial of service) vdb-entry technical-description

vuldb.com/vuln/361909/cti (VDB-361909 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/808425 (Submit #808425 | Open5gs NSSF v2.7.7 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4435 exploit issue-tracking

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-8122)

nvd.nist.gov (CVE-2026-8122)

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