CVE-2026-8728

MEDIUM

Open5GS NRF conv.c ogs_sbi_discovery_option_parse_plmn_list denial of service

Title source: cna
STIX 2.1

Description

A security vulnerability has been detected in Open5GS up to 2.7.7. The impacted element is the function ogs_sbi_discovery_option_parse_plmn_list in the library /lib/sbi/conv.c of the component NRF. Such manipulation of the argument target-plmn-list leads to denial of service. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

References (6)

Core 6
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-364317 | Open5GS NRF conv.c ogs_sbi_discovery_option_parse_plmn_list denial of service
https://vuldb.com/vuln/364317
Signature, Permissions Required signature permissions-required
VDB-364317 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/364317/cti
Third Party Advisory third-party-advisory
Submit #808510 | Open5gs NRF v2.7.7 Denial of Service
https://vuldb.com/submit/808510
Third Party Advisory third-party-advisory
Submit #808511 | Open5gs NRF v2.7.7 Denial of Service (Duplicate)
https://vuldb.com/submit/808511
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4458

Scores

CVSS v3 4.3
EPSS 0.0039
EPSS Percentile 30.5%
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 17, 2026
Tracked Since May 17, 2026