Vulnerability in Open5gs
CVE-2026-8728
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.007 (51.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.003
Affected products
- Open5gs
- Open5gs — versions 2.7.0, 2.7.1, 2.7.2
Weakness classification (CWE)
References
- vuldb.com/vuln/364317 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/364317/cti (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/submit/808510 (VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/submit/808511 (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/open5gs/open5gs/issues/4458 (issue-tracking, Exploit, exploit, Issue Tracking)
- github.com/open5gs/open5gs/ (Product, product)
Frequently asked questions
- What is CVE-2026-8728?
- CVE-2026-8728 is a medium-severity vulnerability in Open5gs, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-05-17.
- How severe is CVE-2026-8728?
- Medium severity. CVSS v3 base score is 4.3 out of 10.