CVE-2026-66098 Quanovate Tech Inc. (operating as Mira / Mira Care) CVE debrief

Who should care

Healthcare organizations, fertility clinics, and individuals using the Mira hormone monitor device for ovulation tracking and fertility monitoring should be aware of this vulnerability and take steps to mitigate potential risks. Organizations using the device should prioritize patching to prevent potential disruptions to ovulation tracking and fertility monitoring workflows. Individuals using the device should ensure they have the latest firmware updates installed and follow proper security practices to minimize exposure. Additionally, security teams and vulnerability management teams should be aware of this vulnerability and take steps to identify and assess potential exposure in their environments. Affected operators and platforms should review and update incident response plans to address potential disruptions to critical workflows. Security teams should also review compensating controls for exposed systems while remediation is scheduled and verified. Monitoring and detection teams should check relevant logs for exposed assets that need extra review. Asset inventory and vulnerability management teams should track exceptions and retest remediated assets to ensure that the vulnerability is properly mitigated. Finally, source tracking and incident response teams should be aware of this vulnerability and take steps to verify that affected systems are properly patched and secured. The CVE record was published on 2026-08-11T22:18:49.740Z and has not been modified since then. The vulnerability has been assigned a CVSS score of 7.1 and is considered HIGH severity. The device's firmware does not properly authenticate BLE central connections, allowing an attacker to send a 0x01 write command that causes the device to reboot. This could lead to a denial-of-service condition or disrupt ovulation tracking and fertility monitoring workflow. The device is used for ovulation tracking and fertility monitoring, and the vulnerability could have significant impacts on individuals and organizations that rely on these functions. Therefore, it is essential that affected product deployments are identified and assessed for potential exposure, and that necessary steps are taken to rem

Technical summary

The Mira hormone monitor device firmware accepts a 0x01 write from any BLE central without authentication, causing the device to reboot into bootloader mode. This could lead to a denial-of-service condition or disrupt ovulation tracking and fertility monitoring workflow. The vulnerability has been assigned a CVSS score of 7.1 and is considered HIGH severity. Healthcare organizations, fertility clinics, and individuals using the Mira hormone monitor device for ovulation tracking and fertility monitoring should be aware of this vulnerability and take steps to mitigate potential risks. The device's firmware does not properly authenticate BLE central connections, allowing an attacker to send a 0x01 write command that causes the device to reboot.

Defensive priority

Organizations using the Mira hormone monitor device should prioritize patching to prevent potential disruptions to ovulation tracking and fertility monitoring workflows.

Recommended defensive actions

• Inventory and assess usage of Mira hormone monitor devices
• Apply patches or updates provided by the vendor
• Implement compensating controls to monitor and restrict unauthorized access to devices
• Review and update incident response plans to address potential disruptions to critical workflows
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE description indicates that the Mira hormone monitor device firmware accepts a 0x01 write from any BLE central without authentication, causing the device to reboot into bootloader mode. This could lead to a denial-of-service condition or disrupt ovulation tracking and fertility monitoring workflow. However, further details about the vulnerability and affected products are limited.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.