PT-2026-8008 · Free5Gc · Free5Gc

Published 2026-02-13 · Updated 2026-02-18 · CVE-2025-70123

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 An improper input validation and protocol compliance issue exists in free5GC version 4.0.1. The UPF component incorrectly accepts a malformed PFCP Association Setup Request, violating 3GPP TS 29.244. This leads to an inconsistent state within the UPF, and a subsequent valid PFCP Session Establishment Request causes a cascading failure, disrupting the SMF connection and resulting in service degradation. The vulnerability allows remote attackers to cause a denial of service.

Recommendations Update to a newer version that contains a fix for this vulnerability.

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2025-70123

Affected Products

Free5Gc

References · 7

• https://github.com/free5gc/free5gc/issues/745 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-70123 · Security Note
• https://osv.dev/vulnerability/CVE-2025-70123 · Vendor Advisory
• https://twitter.com/CVEnew/status/2022362799972700602 · Twitter Post
• https://twitter.com/cracbot/status/2024076482927325389 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2022371457574064254 · Twitter Post
• https://t.me/cveNotify/152355 · Telegram Post