Vulnerability · Published Jan 30, 2026 · Assigned by VulDB
CVE-2026-1684Free5GC SMF PFCP UDP Endpoint pfcp_reports.go HandleReports denial of service
Medium 5.3
In plain English
A medium-severity security flaw in SMF from Free5GC. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.6%top 51.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
Weakness: CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
References
- VDB-343477 | Free5GC SMF PFCP UDP Endpoint pfcp_reports.go HandleReports denial of service vdb-entry, technical-description
- VDB-343477 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #739655 | free5gc SMF v4.1.0 Denial of Service third-party-advisory
- Submit #739656 | free5gc SMF v4.1.0 Denial of Service (Duplicate) third-party-advisory
- https://github.com/free5gc/free5gc/issues/806 issue-tracking
- https://github.com/free5gc/smf/pull/188 issue-tracking, patch
- https://github.com/free5gc/smf/ product