CVE-2025-70122

7.5 highEPSS 0.4%

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

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.

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 33% of CVEs (scores of 2026-10-31)
CWE: CWE-122
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/746

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