CVE-2025-70122

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-122

Affected software

No affected versions have been published.

Timeline

Published: Feb 13, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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