CVE-2025-70123

An improper input validation and protocol compliance vulnerability in free5GC v4.0.1 allows remote attackers to cause a denial of service. The UPF incorrectly accepts a malformed PFCP Association Setup Request, violating 3GPP TS 29.244. This places the UPF in an inconsistent state where a subsequent valid PFCP Session Establishment Request triggers a cascading failure, disrupting the SMF connection and causing service degradation.
References
Link Resource
https://github.com/free5gc/free5gc/issues/745 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
First Time Free5gc free5gc
Free5gc
CPE cpe:2.3:a:free5gc:free5gc:4.0.1:*:*:*:*:*:*:*
References () https://github.com/free5gc/free5gc/issues/745 - () https://github.com/free5gc/free5gc/issues/745 - Exploit, Issue Tracking, Vendor Advisory

13 Feb 2026, 21:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5
CWE CWE-20

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-2025-70123

Mitre link : CVE-2025-70123

CVE.ORG link : CVE-2025-70123


JSON object : View

Products Affected

free5gc

  • free5gc
CWE
CWE-20

Improper Input Validation