CVE-2026-8730

MEDIUM

Open5GS NRF context.c ogs_sbi_nf_instance_set_id denial of service

Title source: cna
STIX 2.1

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.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-364319 | Open5GS NRF context.c ogs_sbi_nf_instance_set_id denial of service
https://vuldb.com/vuln/364319
Signature, Permissions Required signature permissions-required
VDB-364319 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/364319/cti
Third Party Advisory third-party-advisory
Submit #808514 | Open5gs NRF v2.7.6 Denial of Service
https://vuldb.com/submit/808514
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4462

Scores

CVSS v3 4.3
EPSS 0.0038
EPSS Percentile 29.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-404
Status published
Products (8)
None/Open5GS 2.7.0
None/Open5GS 2.7.1
None/Open5GS 2.7.2
None/Open5GS 2.7.3
None/Open5GS 2.7.4
None/Open5GS 2.7.5
None/Open5GS 2.7.6
open5gs/open5gs < 2.7.6
Published May 17, 2026
Tracked Since May 17, 2026