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.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://github.com/free5gc/free5gc/issues/745 |
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History
Wed, 18 Feb 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:free5gc:free5gc:4.0.1:*:*:*:*:*:*:* |
Mon, 16 Feb 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Free5gc
Free5gc free5gc |
|
| Vendors & Products |
Free5gc
Free5gc free5gc |
Fri, 13 Feb 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-20 | |
| Metrics |
cvssV3_1
|
Fri, 13 Feb 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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 |
|
Status: PUBLISHED
Assigner: mitre
Published: 2026-02-13T00:00:00.000Z
Updated: 2026-02-13T20:58:52.885Z
Reserved: 2026-01-09T00:00:00.000Z
Link: CVE-2025-70123
Updated: 2026-02-13T20:58:47.162Z
Status : Analyzed
Published: 2026-02-13T17:16:12.210
Modified: 2026-02-18T15:40:29.760
Link: CVE-2025-70123
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