Vulnerability Description
free5GC go-upf is the User Plane Function (UPF) implementation for 5G networks that is part of the free5GC project. Versions prior to 1.2.8 have a Heap-based Buffer Overflow (CWE-122) vulnerability leading to Denial of Service. Remote attackers can crash the UPF network element by sending a specially crafted PFCP Session Modification Request with an invalid SDF Filter length field. This causes a heap buffer overflow, resulting in complete service disruption for all connected UEs and potential cascading failures affecting the SMF. All deployments of free5GC using the UPF component may be affected. Version 1.2.8 of go-upf contains a fix.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Free5Gc | Go-Upf | < 1.2.8 |
Related Weaknesses (CWE)
References
- https://github.com/free5gc/free5gc/issues/746ExploitIssue TrackingPatch
- https://github.com/free5gc/free5gc/security/advisories/GHSA-gf69-93xr-p23gPatchVendor Advisory
- https://github.com/free5gc/go-upf/commit/b798fe5ee6a984be492fa53958dd5f1305469f8Patch
- https://github.com/free5gc/go-upf/pull/85Issue TrackingPatch
FAQ
What is CVE-2025-69247?
CVE-2025-69247 is a vulnerability with a CVSS score of 7.5 (HIGH). free5GC go-upf is the User Plane Function (UPF) implementation for 5G networks that is part of the free5GC project. Versions prior to 1.2.8 have a Heap-based Buffer Overflow (CWE-122) vulnerability le...
How severe is CVE-2025-69247?
CVE-2025-69247 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-69247?
Check the references section above for vendor advisories and patch information. Affected products include: Free5Gc Go-Upf.