PT-2026-8007 · Free5Gc · Free5Gc

Published 2026-02-13 · Updated 2026-02-18 · CVE-2025-70122

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions free5GC version 4.0.1

Description A heap buffer overflow exists in the UPF component of free5GC version 4.0.1. This flaw allows remote attackers to potentially cause a denial of service by sending a specially crafted PFCP Session Modification Request. The issue is located in the SDFFilterFields.UnmarshalBinary function (sdf-filter.go) and occurs when processing a declared length that exceeds the buffer's capacity, resulting in a runtime panic and UPF crash.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2025-70122

Affected Products

Free5Gc

References · 7

• https://github.com/free5gc/free5gc/issues/746 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-70122 · Security Note
• https://osv.dev/vulnerability/CVE-2025-70122 · Vendor Advisory
• https://t.me/cveNotify/152354 · Telegram Post
• https://twitter.com/CVEnew/status/2022362799083540781 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2022374017575899400 · Twitter Post
• https://twitter.com/cracbot/status/2024076481052512390 · Twitter Post