---
id: CVE-2026-18844
title: "The firmware of the\_Pulsetto Vagus Nerve Stimulator\_accepts several undisclosed commands over its Bluetooth Low Energy (BLE) interface"
summary: "The firmware of the\_Pulsetto Vagus Nerve Stimulator\_accepts several undisclosed commands over its Bluetooth Low Energy (BLE) interface. These commands are sent without authentication or encryption, and are never issued by the companion m…"
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'
cwe:
  - CWE-912
published: '2026-08-11'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T19:30:43.093'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18844'
references:
  - url: >-
      https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-223-02.json
    label: ics-cert@hq.dhs.gov
  - url: 'https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-223-02'
    label: ics-cert@hq.dhs.gov
tags:
  - nvd
epss: 0.00201
epssPercentile: 0.08812
ingestedAt: '2026-09-08T20:10:03.156Z'
---

## Overview

The firmware of the Pulsetto Vagus Nerve Stimulator accepts several undisclosed commands over its Bluetooth Low Energy (BLE) interface. These commands are sent without authentication or encryption, and are never issued by the companion mobile application, yet are fully processed by the device when it is powered on.

## Remediation

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