CVE-2026-66098

7.1 highEPSS 0.3%

High (7.1). EPSS 0.3% chance of exploitation in the next 30 days.

The Mira hormone monitor device firmware accepts a 0x01 write from any BLE central without authentication, causing the device to reboot into bootloader mode. An attacker could cause a denial-of-service condition or disrupt ovulation tracking and fertility monitoring workflow.

Severity

CVSS 4.0

7.1 high

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

6.5 medium

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 25% of CVEs (scores of 2026-10-31)
CWE: CWE-306
Published: 2026-08-11
Modified: 2026-09-03
Record from: the NVD, synced 2026-10-19

References

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-223-01.json
https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-223-01

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