CVE-2026-8730 | THREATINT

Description

A flaw has been found in Open5GS up to 2.7.6. This impacts the function ogs_sbi_nf_instance_set_id in the library /lib/sbi/context.c of the component NRF. Executing a manipulation of the argument nfInstanceId can lead to denial of service. The attack may be performed from remote. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

PUBLISHED Reserved 2026-05-16 | Published 2026-05-17 | Updated 2026-05-18 | 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

2026-05-16:	Advisory disclosed
2026-05-16:	VulDB entry created
2026-05-16:	VulDB entry last update

Credits

LinJu (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/364319 (VDB-364319 | Open5GS NRF context.c ogs_sbi_nf_instance_set_id denial of service) vdb-entry technical-description

vuldb.com/vuln/364319/cti (VDB-364319 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/808514 (Submit #808514 | Open5gs NRF v2.7.6 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4462 exploit issue-tracking

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-8730)

nvd.nist.gov (CVE-2026-8730)

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