Vulnerability in Open5gs
CVE-2026-1587
A vulnerability has been found in Open5GS up to 2.7.6. The affected element is the function sgwc_s11_handle_modify_bearer_request of the file /sgwc/s11-handler.c of the component SGWC. 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. Applying a patch is the recommended action to fix this issue. The issue report is flagged as already-fixed.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.006 (45.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.001
Affected products
- Open5gs
- Open5gs — versions 2.7.0, 2.7.1, 2.7.2
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (Exploit, VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/open5gs/open5gs/issues/4272 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
- github.com/open5gs/open5gs/issues/4272 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
- github.com/open5gs/open5gs/issues/4272 (issue-tracking, Exploit, exploit, Issue Tracking, Vendor Advisory)
- github.com/open5gs/open5gs/ (product)
Frequently asked questions
- What is CVE-2026-1587?
- CVE-2026-1587 is a medium-severity vulnerability in Open5gs, classified under Improper Resource Shutdown or Release. CVSS score: 5.3/10. Published 2026-01-29.
- How severe is CVE-2026-1587?
- Medium severity. CVSS v3 base score is 5.3 out of 10.