CVE-2025-3699

Critical

Description

Missing Authentication for Critical Function vulnerability in Mitsubishi Electric Corporation G-50 all versions, G-50-W all versions, G-50A all versions, GB-50 all versions, GB-50A all versions, GB-24A all versions, G-150AD all versions, AG-150A-A all versions, AG-150A-J all versions, GB-50AD all versions, GB-50ADA-A all versions, GB-50ADA-J all versions, EB-50GU-A all versions, EB-50GU-J all versions, AE-200J all versions, AE-200A all versions, AE-200E all versions, AE-50J all versions, AE-50A all versions, AE-50E all versions, EW-50J all versions, EW-50A all versions, EW-50E all versions, TE-200A all versions, TE-50A all versions, TW-50A all versions, and CMS-RMD-J all versions allows a remote unauthenticated attacker to bypass authentication and then control the air conditioning systems illegally, or disclose information in them by exploiting this vulnerability. In addition, the attacker may tamper with firmware for them using the disclosed information.

SeverityCritical
CVSS9.8
Exploit probability—
ProductG-50
PublishedJun 26, 2025
First seenJun 26, 2025

How to fix

Affected products

ProductAffected versionsFixed in
Mitsubishi Electric Corporation G-50No range specified—
Mitsubishi Electric Corporation G-50-WNo range specified—
Mitsubishi Electric Corporation G-50ANo range specified—
Mitsubishi Electric Corporation GB-50No range specified—
Mitsubishi Electric Corporation GB-50ANo range specified—
Mitsubishi Electric Corporation GB-24ANo range specified—
Mitsubishi Electric Corporation G-150ADNo range specified—
Mitsubishi Electric Corporation AG-150A-ANo range specified—
Mitsubishi Electric Corporation AG-150A-JNo range specified—
Mitsubishi Electric Corporation GB-50ADNo range specified—
Mitsubishi Electric Corporation GB-50ADA-ANo range specified—
Mitsubishi Electric Corporation GB-50ADA-JNo range specified—
Mitsubishi Electric Corporation EB-50GU-ANo range specified—
Mitsubishi Electric Corporation EB-50GU-JNo range specified—
Mitsubishi Electric Corporation AE-200JNo range specified—
Mitsubishi Electric Corporation AE-200ANo range specified—
Mitsubishi Electric Corporation AE-200ENo range specified—
Mitsubishi Electric Corporation AE-50JNo range specified—
Mitsubishi Electric Corporation AE-50ANo range specified—
Mitsubishi Electric Corporation AE-50ENo range specified—
Mitsubishi Electric Corporation EW-50JNo range specified—
Mitsubishi Electric Corporation EW-50ANo range specified—
Mitsubishi Electric Corporation EW-50ENo range specified—
Mitsubishi Electric Corporation TE-200ANo range specified—
Mitsubishi Electric Corporation TE-50ANo range specified—
Mitsubishi Electric Corporation TW-50ANo range specified—
Mitsubishi Electric Corporation CMS-RMD-JNo range specified—

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