CVE-2026-5667
Information Disclosure, Information Tampering, or Denial-of-Service (DoS) Vulnerability in Multiple Home Appliances
No known exploitation. EPSS puts it in the 13th percentile. No fix published yet.
What to do
No fixed build or workaround is published yet. Limit exposure and watch for a patch.
What it is
From the CVE record
Use of Hard-coded Credentials vulnerability in Mitsubishi Electric Room Air Conditioners (for Japan and outside Japan); Wireless LAN Adapters for Room Air Conditioners (for Japan and outside Japan); Wireless LAN Adapters for Packaged Air Conditioners (for Japan and outside Japan); Refrigerators (for Japan); Heat Pump Water Heaters / HEMS-Compatible Adapters / Wireless LAN Adapters (for Japan); Bathroom Dryer / Heater / Ventilation Systems (for Japan); Adapters for Airflow Ventilation Systems, Heat Pump Chilled / Hot Water Systems, and Ventilation / Air-Conditioning System Air Resorts (for Japan); Lossnay Central Ventilation Systems (for Japan); Smart Switches for Ventilation Fans and Lossnay (for Japan); IH Cooking Heaters (for Japan); and Rice Cookers (for Japan) allows an attacker within Wi-Fi radio range of an affected product to access the affected product using a hard-coded SSID and password, thereby obtaining device data such as operation status, room set temperature, and room temperature; changing the air-conditioner or Wi-Fi settings; or causing Wi-Fi communication to enter a denial-of-service (DoS) condition.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.2% chance of exploitation activity in the next 30 days, which ranks it in the 13th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
4 events over 0 days, from the signal feeds we watch.
- Publishedweakness classified, att&ck mapped, record updated
Affected products
- Room Air Conditioners (for Japan) MSZ-BKR2223-WICS / OT / IoT
- Room Air Conditioners (for Japan) MSZ-BKR2224-WICS / OT / IoT
- Room Air Conditioners (for Japan) MSZ-BKR2523-WICS / OT / IoT
- Room Air Conditioners (for Japan) MSZ-BKR2524-WICS / OT / IoT
- Room Air Conditioners (for Japan) MSZ-BKR2823-WICS / OT / IoT
- Room Air Conditioners (for Japan) MSZ-BKR2824-WICS / OT / IoT
- Room Air Conditioners (for Japan) MSZ-BKR3623-WICS / OT / IoT
- Room Air Conditioners (for Japan) MSZ-BKR3624-WICS / OT / IoT
And 2472 more affected products. See all after sign-in
Technical detail
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Credential AccessT1552Unsecured Credentialshigh confidence
- Initial AccessT1078Valid Accountshigh confidence
Sources
References in the record
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