Vulnerability in Open5gs
CVE-2026-1736
A security vulnerability has been detected in Open5GS up to 2.7.6. Impacted is the function sgwc_s11_handle_create_indirect_data_forwarding_tunnel_request of the file /src/sgwc/s11-handler.c of the component SGWC. Such manipulation leads to reachable assertion. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. A patch should be applied to remediate 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 (49.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
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/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/open5gs/open5gs/issues/4270 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
- github.com/open5gs/open5gs/issues/4270 (issue-tracking, Issue Tracking)
- github.com/open5gs/open5gs/issues/4270 (issue-tracking, Exploit, exploit, Issue Tracking, Vendor Advisory)
- github.com/open5gs/open5gs/ (Product, product)
Frequently asked questions
- What is CVE-2026-1736?
- CVE-2026-1736 is a medium-severity vulnerability in Open5gs, classified under Reachable Assertion. CVSS score: 5.3/10. Published 2026-02-02.
- How severe is CVE-2026-1736?
- Medium severity. CVSS v3 base score is 5.3 out of 10.