---
id: CVE-2026-18164
title: >-
  An undocumented hard-coded credential, shared by all device units, is
  authorized to bypass authentication
summary: >-
  An undocumented hard-coded credential, shared by all device units, is
  authorized to bypass authentication. This allows an attacker within Bluetooth
  range to arbitrarily manipulate brain stimulation parameters and state.
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-798
published: '2026-08-13'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T19:30:43.093'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18164'
references:
  - url: >-
      https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-225-01.json
    label: ics-cert@hq.dhs.gov
  - url: 'https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-225-01'
    label: ics-cert@hq.dhs.gov
tags:
  - nvd
epss: 0.00388
epssPercentile: 0.30109
ingestedAt: '2026-09-08T20:10:03.157Z'
---

## Overview

An undocumented hard-coded credential, shared by all device units, is authorized to bypass authentication. This allows an attacker within Bluetooth range to arbitrarily manipulate brain stimulation parameters and state.

## Remediation

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