What’s Vulnerable › Vulnerabilities

CVE-2025-3699

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-26 · updated 2026-06-17
• Weakness: CWE-306

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.

Affected products

• Mitsubishi Electric Corporation AE-200A: all versions
• Mitsubishi Electric Corporation AE-200E: all versions
• Mitsubishi Electric Corporation AE-200J: all versions
• Mitsubishi Electric Corporation AE-50A: all versions
• Mitsubishi Electric Corporation AE-50E: all versions
• Mitsubishi Electric Corporation AE-50J: all versions
• Mitsubishi Electric Corporation AG-150A-A: all versions
• Mitsubishi Electric Corporation AG-150A-J: all versions
• Mitsubishi Electric Corporation CMS-RMD-J: all versions
• Mitsubishi Electric Corporation EB-50GU-A: all versions
• Mitsubishi Electric Corporation EB-50GU-J: all versions
• Mitsubishi Electric Corporation EW-50A: all versions
• Mitsubishi Electric Corporation EW-50E: all versions
• Mitsubishi Electric Corporation EW-50J: all versions
• Mitsubishi Electric Corporation G-150AD: all versions
• Mitsubishi Electric Corporation G-50: all versions
• Mitsubishi Electric Corporation G-50-W: all versions
• Mitsubishi Electric Corporation G-50A: all versions
• Mitsubishi Electric Corporation GB-24A: all versions
• Mitsubishi Electric Corporation GB-50: all versions
• Mitsubishi Electric Corporation GB-50A: all versions
• Mitsubishi Electric Corporation GB-50AD: all versions
• Mitsubishi Electric Corporation GB-50ADA-A: all versions
• Mitsubishi Electric Corporation GB-50ADA-J: all versions
• Mitsubishi Electric Corporation TE-200A: all versions
• Mitsubishi Electric Corporation TE-50A: all versions
• Mitsubishi Electric Corporation TW-50A: all versions

References

• https://jvn.jp/vu/JVNVU96471539/
• https://www.cisa.gov/news-events/ics-advisories/icsa-25-177-01
• https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-004_en.pdf

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