---
id: CVE-2025-65568
title: >-
  A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface
  component) in version upf-epc-pfcpiface:2.1.3-dev
summary: >-
  A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface
  component) in version upf-epc-pfcpiface:2.1.3-dev. After PFCP association, a
  PFCP Session Establishment Request that includes a CreateFAR with an empty or
  trunca…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-125
vendor: opennetworking
product: upf
affected:
  - upf = 2.1.3
published: '2025-12-18'
updated: '2026-07-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-65568'
references:
  - url: 'https://github.com/omec-project/upf/issues/962'
    label: cve@mitre.org
  - url: 'https://github.com/omec-project/upf/issues/962'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00416
epssPercentile: 0.33232
ingestedAt: '2026-07-06T16:44:34.490Z'
---

## Overview

A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface component) in version upf-epc-pfcpiface:2.1.3-dev. After PFCP association, a PFCP Session Establishment Request that includes a CreateFAR with an empty or truncated IPv4 address field is not properly validated. During parsing, parseFAR() calls ip2int(), which performs an out-of-bounds read on the IPv4 address buffer and triggers an index-out-of-range panic. An attacker who can send PFCP Session Establishment Request messages to the UPF's N4/PFCP endpoint can exploit this issue to repeatedly crash the UPF and disrupt user-plane services.

## Affected

- `upf = 2.1.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.