CVE-2026-66875

Device rebinding and data theft via unauthenticated BLE

Published Aug 11, 2026 · Updated Aug 11, 2026

Missing authentication in Mira Monitor Firmware 1.7.1.47 and Mira App 4.5.15.4 allows remote attackers to rebind monitors over BLE. The BLE interface performs account rebinding and measurement retrieval without authenticating the central, returns stored hormone data in cleartext, processes malformed or undocumented opcodes that interrupt service, and advertises a static random address. An attacker needs no account or user interaction but must remain within roughly 10–30 meters; compromise exposes stored measurements, device ownership, availability, and physical tracking.

CVSS severity8.7
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Mira Monitor Firmware 1.7.1.47 and Mira App 4.5.15.4 allows remote attackers to rebind monitors over BLE. The BLE interface performs account rebinding and measurement retrieval without authenticating the central, returns stored hormone data in cleartext, processes malformed or undocumented opcodes that interrupt service, and advertises a static random address. An attacker needs no account or user interaction but must remain within roughly 10–30 meters; compromise exposes stored measurements, device ownership, availability, and physical tracking.

The record

CVE
CVE-2026-66875
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Quanovate Tech Inc.
Product
Mira Hormone Monitor Firmware
Classifications
CWE-306
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.7.1.47

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Quanovate Tech Inc. · Mira Hormone Monitor Firmwareversion=1.7.1.47
Quanovate Tech Inc. · Mira Android Appversion=4.5.15.4

Published CVSS scores

8.8ICS-CERTCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.7ICS-CERTCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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