---
id: CVE-2026-8222
title: A vulnerability has been found in Open5GS up to 2.7.7
summary: >-
  A vulnerability has been found in Open5GS up to 2.7.7. Affected is the
  function pcf_nbsf_management_handle_register of the file
  src/pcf/nbsf-handler.c of the component sm-policies Endpoint. Such
  manipulation leads to denial of service. T…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-404
vendor: open5gs
product: open5gs
affected:
  - open5gs <= 2.7.7
published: '2026-05-10'
updated: '2026-07-24'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-8222'
references:
  - url: 'https://github.com/open5gs/open5gs/'
    label: cna@vuldb.com
  - url: 'https://github.com/open5gs/open5gs/issues/4437'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/808427'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/362439'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/362439/cti'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.0085
epssPercentile: 0.56362
ingestedAt: '2026-07-24T07:21:20.896Z'
---

## Overview

A vulnerability has been found in Open5GS up to 2.7.7. Affected is the function pcf_nbsf_management_handle_register of the file src/pcf/nbsf-handler.c of the component sm-policies Endpoint. Such manipulation leads to denial of service. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

## Affected

- `open5gs <= 2.7.7`

## Remediation

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