CVE-2025-67399: An issue in AIRTH SMART HOME AQI MONITOR Bootloader v.1.005 allows a physically proximate attacker to obtain s

Routine

MEDIUM 4.6DOWNGRADE

CVE-2025-67399 is a medium-severity flaw (CVSS 4.6) affecting smart home aqi monitor bootloader. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in AIRTH SMART HOME AQI MONITOR Bootloader v.1.005 allows a physically proximate attacker to obtain sensitive information via the UART port of the BK7231N controller (Wi-Fi and BLE module) on the device is open to access

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.6 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-200
Published	2026-01-14
Last modified	2026-07-05

Publisher (CNA): MITRE · Vendor: airth

Last updated 2026-07-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-14 16:15 UTCPublished CVE record published
2026-07-05 02:17 UTCUpdated Record last modified

airth smart home aqi monitor bootloader DOWNGRADE

Affected: 1.005

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.005

1. Check installed version

apt-cache policy smart-home-aqi-monitor-bootloader || rpm -q smart-home-aqi-monitor-bootloader || smart-home-aqi-monitor-bootloader --version

2. No fixed release: DOWNGRADE to a release before 1.005 (Debian / Ubuntu)

apt-cache madison smart-home-aqi-monitor-bootloader sudo apt install smart-home-aqi-monitor-bootloader=<VERSION_BEFORE_1.005> sudo apt-mark hold smart-home-aqi-monitor-bootloader

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list smart-home-aqi-monitor-bootloader sudo dnf downgrade smart-home-aqi-monitor-bootloader-<VERSION_BEFORE_1.005> sudo dnf versionlock add smart-home-aqi-monitor-bootloader

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-67399?

smart home aqi monitor bootloader: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-67399 being exploited?

CVE-2025-67399 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-67399 affect?

CVE-2025-67399 affects smart home aqi monitor bootloader. Severity is medium (CVSS 4.6). An issue in AIRTH SMART HOME AQI MONITOR Bootloader v.1.005 allows a physically proximate attacker to obtain sensitive information via the UART port of the BK7231N controller (Wi-Fi and BLE module) on the device is open to access

How urgent is CVE-2025-67399?

Priority 18/100. No elevated risk signals yet.

Software pages

Wi-Fi vulnerabilities

References

← Back to latest CVEs