# CVE-2026-66098 — Mira Firmware

> As of 2026-08-12, CVE-2026-66098 is a MEDIUM-severity vulnerability in Mira Firmware, CVSS v3.1 6.5, EPSS 0.1% (9.6th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-66098 as of 2026-08-12; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-12

## What is CVE-2026-66098?

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.

The record classifies CVE-2026-66098 under weakness class [CWE-306](https://intel.threadlinqs.com/cwe/CWE-306). Its CVSS v3 base vector states that the flaw is reachable from an adjacent network, needs no prior authentication, needs no user interaction, and has high impact on availability. 2 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 55 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 6.5 — MEDIUM (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **CVSS v4.0 base score:** 7.1 (`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`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 9.6% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 3.6/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-11, last modified 2026-08-12

## Is CVE-2026-66098 being exploited?

It currently carries a trending score of 32 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Quanovate Tech Inc. (operating as Mira / Mira Care)](https://intel.threadlinqs.com/vendors/quanovate-tech-inc-operating-as-mira-mira-care): Mira Firmware, Mira Android App

## How to fix CVE-2026-66098

No vendor patch reference has been recorded for CVE-2026-66098 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-66098

No threat campaign in the Threadlinqs corpus currently references CVE-2026-66098, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-08-13.

**Other references**

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

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-66098
Full detection coverage and IOCs for threats exploiting CVE-2026-66098 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp