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.
History

Fri, 13 Feb 2026 16:30:00 +0000

Type Values Removed Values Added
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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-02-13T16:20:08.656Z

Reserved: 2026-01-09T00:00:00.000Z

Link: CVE-2025-70122

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-13T17:16:12.090

Modified: 2026-02-13T17:16:12.090

Link: CVE-2025-70122

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.