Missing Authentication Vulnerability in Mitsubishi Electric Air Conditioning Products
CVE-2025-3699

9.8CRITICAL

Key Information:

Vendor

Mitsubishi Electric Corporation

Status
G-50
G-50-w
G-50a
Gb-50
Vendor
CVE Published:
26 June 2025

What is CVE-2025-3699?

A missing authentication vulnerability exists in various Mitsubishi Electric air conditioning products, allowing a remote, unauthenticated attacker to bypass critical authentication mechanisms. This flaw enables unauthorized control over the air conditioning systems as well as the potential to access and disclose sensitive information. Furthermore, attackers can exploit this vulnerability to manipulate firmware components of the affected systems, posing significant security risks and operational disruptions.

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Affected Version(s)

AE-200A All versions

AE-200E All versions

AE-200J All versions

References

https://www.mitsubishielectric.com/psirt/vulnerability/pd...
vendor-advisory
https://jvn.jp/vu/JVNVU96471539/
government-resource
https://www.cisa.gov/news-events/ics-advisories/icsa-25-1...
government-resource

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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