Vulnerability in Free5gc
CVE-2026-1974
A vulnerability was identified in Free5GC up to 4.1.0. This affects the function ResolveNodeIdToIp of the file internal/sbi/processor/datapath.go of the component SMF. The manipulation leads to denial of service. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. It is recommended to apply a patch to fix this issue.
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: 0.005 (42.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.6% 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: 0.005 · change: +0.000
Affected products
- Free5gc
- Free5gc — versions 4.0, 4.1.0
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/free5gc/free5gc/issues/816 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
- github.com/free5gc/free5gc/issues/816 (issue-tracking, Exploit, exploit, Issue Tracking, Vendor Advisory)
- github.com/free5gc/smf/pull/189 (issue-tracking, patch, Issue Tracking)
- github.com/free5gc/free5gc/ (Product, product)
Frequently asked questions
- What is CVE-2026-1974?
- CVE-2026-1974 is a medium-severity vulnerability in Free5gc, classified under Improper Resource Shutdown or Release. CVSS score: 5.3/10. Published 2026-02-06.
- How severe is CVE-2026-1974?
- Medium severity. CVSS v3 base score is 5.3 out of 10.