CVE-2025-70122

CVSS Score & Metrics

Base Score

7.5 / 10

Vector String

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

Vulnerability Description

A heap buffer overflow vulnerability in the UPF component of free5GC v4.0.1 allows remote attackers to cause a denial of service via a crafted PFCP Session Modification Request. The issue occurs in the SDFFilterFields.UnmarshalBinary function (sdf-filter.go) when processing a declared length that exceeds the actual buffer capacity, leading to a runtime panic and UPF crash.

Vulnerability Details

Published Date

February 13, 2026

Last Modified

February 18, 2026

CWE ID

CWE-122

Source

NVD

Vendor

free5gc

Product

free5gc

External References

https://github.com/free5gc/free5gc/issues/746

CVSS Score & Metrics

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