Vulnerability in Free5gc
CVE-2026-1684
A vulnerability was found in Free5GC SMF up to 4.1.0. Affected by this issue is the function HandleReports of the file /internal/context/pfcp_reports.go of the component PFCP UDP Endpoint. The manipulation results in denial of service. The attack can be executed remotely. It is advisable to implement a patch to correct 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: 0.006 (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
- Free5gc
- Free5gc Smf — 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/ (VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/free5gc/free5gc/issues/806 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
- github.com/free5gc/smf/pull/188 (issue-tracking, patch, Issue Tracking)
- github.com/free5gc/smf/ (product)
Frequently asked questions
- What is CVE-2026-1684?
- CVE-2026-1684 is a medium-severity vulnerability in Free5gc, classified under Improper Resource Shutdown or Release. CVSS score: 5.3/10. Published 2026-01-30.
- How severe is CVE-2026-1684?
- Medium severity. CVSS v3 base score is 5.3 out of 10.