CVE-2025-70123

7.5 highEPSS 0.4%

High (7.5) in free5gc free5gc. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2026-02-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

free5gc:free5gc

References

https://github.com/free5gc/free5gc/issues/745

Check your stack JSON