CVE-2025-67399Public exploit

Firmware disclosure via unrestricted controller UART

Published Jan 14, 2026 · Updated Jan 14, 2026

Information exposure in AIRTH Smart Home AQI Monitor Bootloader 1.005 allows physically proximate attackers to extract firmware via UART. The BK7231N Wi-Fi and BLE controller leaves its UART port accessible, allowing bootloader flash contents to be read without authentication. Physical device access and a serial connection are required, and the demonstrated consequence is firmware disclosure rather than modification or service interruption.

CVSS severity4.6
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Information exposure in AIRTH Smart Home AQI Monitor Bootloader 1.005 allows physically proximate attackers to extract firmware via UART. The BK7231N Wi-Fi and BLE controller leaves its UART port accessible, allowing bootloader flash contents to be read without authentication. Physical device access and a serial connection are required, and the demonstrated consequence is firmware disclosure rather than modification or service interruption.

The record

CVE
CVE-2025-67399
Published
Jan 14, 2026
Updated
Jan 14, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-200, T1005
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.6CISA ADPCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo