CVE-2025-70122

HIGH

7.5

Description

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/13/2026

Last Modified2/18/2026

Sourcenvd

Honeypot Sightings0

Affected Products

free5gc:free5gc

Weaknesses (CWE)

CWE-122

References

https://github.com/free5gc/free5gc/issues/746(cve@mitre.org)

IOC Correlations

No correlations recorded

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