Pulsetto Nerve Stimulator Has Hidden BLE Commands
Pulsetto's Vagus Nerve Stimulator accepts undocumented, unauthenticated Bluetooth commands that could disable safety mechanisms or alter stimulation output.
Sourcecisa.gov — open the original
What to check
- Applies to
- The 1 CVE named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
CISA published an ICS medical advisory disclosing CVE-2026-18844, a hidden-functionality flaw (CWE-912) in all versions of the Pulsetto Vagus Nerve Stimulator, a Lithuanian-made wearable device sold worldwide. The device's firmware accepts several undisclosed commands over its Bluetooth Low Energy interface without any authentication or encryption. These commands are never sent by the legitimate companion mobile app but are fully processed by the device whenever it is powered on, meaning any nearby attacker capable of communicating over BLE could potentially disable electrical safety mechanisms or modify stimulation output settings.
The vulnerability was reported to CISA by researcher A.C. Buglione. Pulsetto has not responded to CISA's outreach to coordinate remediation, so no patch or mitigation from the vendor is currently available; affected users are directed to contact Pulsetto support directly. CISA notes the flaw is not exploitable remotely (BLE proximity is required) and no known public exploitation has been reported at this time.
Given the lack of remote exploitability, absence of observed exploitation, and vendor non-responsiveness rather than a broader campaign, this is an informational disclosure rather than an active threat. However, the potential physical-safety impact on a medical device — bypassing safety cutoffs on a nerve-stimulation device — warrants awareness among users and healthcare device administrators.
Mentioned in this report
Source reporting: https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-223-02
Free public brief. The indicators are in the app with a free account, no card. Slack alerts on the vendors you run come with the paid plans, and a new account gets three days of them.
What this brief leaves out
This page is the free tier: the write-up, the severity, the names. In the app the same report carries its extracted indicators and live profiles of the CVEs it names. The paid plans add the security research and news reporting the free tier leaves out.
It sits in a corpus of 16,436 reports from 149 sources, 661 of them written in the last seven days, and it grows through the day.
A new account starts with three days of all of it, no card, then keeps the government and CERT reporting free. Slack alerts are a paid-plan feature: name the vendors you run and Slack hears about the reports that touch them, not the rest of the week's. Nothing is charged unless you subscribe.
Create a free account What it costs