CVE-2025-70122

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.
References
Link Resource
https://github.com/free5gc/free5gc/issues/746 Exploit Issue Tracking Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:free5gc:free5gc:4.0.1:*:*:*:*:*:*:*

History

18 Feb 2026, 15:40

Type Values Removed Values Added
CPE cpe:2.3:a:free5gc:free5gc:4.0.1:*:*:*:*:*:*:*
References () https://github.com/free5gc/free5gc/issues/746 - () https://github.com/free5gc/free5gc/issues/746 - Exploit, Issue Tracking, Vendor Advisory
First Time Free5gc free5gc
Free5gc

13 Feb 2026, 21:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5
CWE CWE-122

13 Feb 2026, 17:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-02-13 17:16

Updated : 2026-02-18 15:40


NVD link : CVE-2025-70122

Mitre link : CVE-2025-70122

CVE.ORG link : CVE-2025-70122


JSON object : View

Products Affected

free5gc

  • free5gc
CWE
CWE-122

Heap-based Buffer Overflow