Mitsubishi Electric’s Air Conditioning: A Hacker’s Paradise with a Tropical Twist!
View CSAF: Mitsubishi Electric air conditioning systems may leave you sweating more than the weather! With a missing authentication issue, hackers could control your HVAC remotely. So, when the thermostat starts acting tropical, it might be more than just a heatwave.

Hot Take:
Who knew your air conditioning could be the next Trojan horse? Just when you thought your thermostat wars were over, cyber villains are here to ignite a new battle. Don’t get too hot under the collar; Mitsubishi is on it, trying to ice the hackers out. Let’s hope they cool things down before we’re all left sweating it out in the server room!
Key Points:
- Mitsubishi Electric’s air conditioning systems have a critical vulnerability allowing remote control by attackers.
- The issue is due to missing authentication for a critical function, with a CVSS v4 score of 9.3.
- Numerous systems, including G-50, AE-200J, and others, are affected across global deployments.
- Mihály Csonka reported the vulnerability, leading Mitsubishi to prepare security updates.
- CISA offers defensive measures and best practices to mitigate potential exploitation risks.
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