Vulnerability in Open5gs
CVE-2026-7587
A vulnerability has been found in Open5GS up to 2.7.7. This vulnerability affects the function amf_nsmf_pdusession_handle_update_sm_context of the file /src/amf/nsmf-handler.c of the component AMF. The manipulation leads to denial of service. It is possible to initiate the attack remotely. The exploit has been disclosed to the public 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: 0.005 (43.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Open5gs
- Open5gs — versions 2.7.0, 2.7.1, 2.7.2
Weakness classification (CWE)
References
- vuldb.com/vuln/360540 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/360540/cti (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/submit/804339 (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/open5gs/open5gs/issues/4408 (issue-tracking, exploit, Issue Tracking)
- github.com/open5gs/open5gs/ (Product, product)
Frequently asked questions
- What is CVE-2026-7587?
- CVE-2026-7587 is a medium-severity vulnerability in Open5gs, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-05-01.
- How severe is CVE-2026-7587?
- Medium severity. CVSS v3 base score is 4.3 out of 10.