← Back to CVEs

CVE-2025-69247

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/23/2026

Last Modified2/25/2026

Sourcenvd

Honeypot Sightings0

Affected Products

free5gc:go-upf

Weaknesses (CWE)

CWE-122

References

https://github.com/free5gc/free5gc/issues/746(security-advisories@github.com)

https://github.com/free5gc/free5gc/security/advisories/GHSA-gf69-93xr-p23g(security-advisories@github.com)

https://github.com/free5gc/go-upf/commit/b798fe5ee6a984be492fa53958dd5f1305469f85(security-advisories@github.com)

https://github.com/free5gc/go-upf/pull/85(security-advisories@github.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.