---
id: CVE-2026-8248
title: A vulnerability was detected in Open5GS up to 2.7.7
summary: >-
  A vulnerability was detected in Open5GS up to 2.7.7. The affected element is
  the function update_authorized_pcc_rule_and_qos of the file
  /src/smf/npcf-handler.c of the component SMF. The manipulation results in
  denial of service. The att…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/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-2026-8248'
references:
  - url: 'https://github.com/open5gs/open5gs/'
    label: cna@vuldb.com
  - url: 'https://github.com/open5gs/open5gs/issues/4442'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/808472'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/362545'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/362545/cti'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.00676
epssPercentile: 0.50075
ingestedAt: '2026-07-24T07:21:21.538Z'
---

## Overview

A vulnerability was detected in Open5GS up to 2.7.7. The affected element is the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. The manipulation results in denial of service. The attack may be launched remotely. The exploit is now 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.