CVE-2026-8123

MEDIUM

Open5GS NSSF message.c ogs_sbi_discovery_option_add_snssais denial of service

Title source: cna
STIX 2.1

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.

References (5)

Core 5
Core References
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4436
Vdb Entry, Technical Description vdb-entry technical-description
VDB-361910 | Open5GS NSSF message.c ogs_sbi_discovery_option_add_snssais denial of service
https://vuldb.com/vuln/361910
Signature, Permissions Required signature permissions-required
VDB-361910 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/361910/cti
Third Party Advisory third-party-advisory
Submit #808426 | Open5gs NSSF v2.7.7 Denial of Service
https://vuldb.com/submit/808426

Scores

CVSS v3 4.3
EPSS 0.0037
EPSS Percentile 28.8%
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 (9)
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
None/Open5GS 2.7.7
open5gs/open5gs < 2.7.7
Published May 08, 2026
Tracked Since May 08, 2026