---
id: CVE-2026-37198
title: >-
  An integer overflow in the SMF component of Open5GS v2.7.6 allows attackers to
  cause a Denial of Service (DoS) via supplying a crafted GTP packet.
summary: >-
  An integer overflow in the SMF component of Open5GS v2.7.6 allows attackers to
  cause a Denial of Service (DoS) via supplying a crafted GTP packet.
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-190
published: '2026-08-27'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T16:04:24.933'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-37198'
references:
  - url: 'https://gist.github.com/hackeryounow/b1b6475d9c1d9b2bd1f1ef895d1f298c'
    label: cve@mitre.org
  - url: 'https://github.com/hackeryounow/5GCVulDB/tree/main/CVE-2026-37198'
    label: cve@mitre.org
  - url: 'https://github.com/open5gs/open5gs/issues/4277'
    label: cve@mitre.org
  - url: 'https://github.com/open5gs/open5gs/issues/4278'
    label: cve@mitre.org
tags:
  - nvd
epss: 0.0063
epssPercentile: 0.47961
ingestedAt: '2026-09-09T16:14:05.516Z'
---

## Overview

An integer overflow in the SMF component of Open5GS v2.7.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted GTP packet.

## Remediation

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