Read the docs
TI-2025-03259 Aliases CVE-2025-3699GHSA-73r7-73gp-j7mv

Missing authentication in Mitsubishi Electric Corporation G-50

Priority MEDIUM 51CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01125 66th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Mitsubishi Electric CorporationG-50All versions—No fix listedCNA
Mitsubishi Electric CorporationG-50-WAll versions—No fix listedCNA
Mitsubishi Electric CorporationG-50AAll versions—No fix listedCNA
Mitsubishi Electric CorporationGB-50All versions—No fix listedCNA
Mitsubishi Electric CorporationGB-50AAll versions—No fix listedCNA
Mitsubishi Electric CorporationGB-24AAll versions—No fix listedCNA
Mitsubishi Electric CorporationG-150ADAll versions—No fix listedCNA
Mitsubishi Electric CorporationAG-150A-AAll versions—No fix listedCNA
Mitsubishi Electric CorporationAG-150A-JAll versions—No fix listedCNA
Mitsubishi Electric CorporationGB-50ADAll versions—No fix listedCNA
Mitsubishi Electric CorporationGB-50ADA-AAll versions—No fix listedCNA
Mitsubishi Electric CorporationGB-50ADA-JAll versions—No fix listedCNA
Mitsubishi Electric CorporationEB-50GU-AAll versions—No fix listedCNA
Mitsubishi Electric CorporationEB-50GU-JAll versions—No fix listedCNA
Mitsubishi Electric CorporationAE-200JAll versions—No fix listedCNA
Mitsubishi Electric CorporationAE-200AAll versions—No fix listedCNA
Mitsubishi Electric CorporationAE-200EAll versions—No fix listedCNA
Mitsubishi Electric CorporationAE-50JAll versions—No fix listedCNA
Mitsubishi Electric CorporationAE-50AAll versions—No fix listedCNA
Mitsubishi Electric CorporationAE-50EAll versions—No fix listedCNA
Mitsubishi Electric CorporationEW-50JAll versions—No fix listedCNA
Mitsubishi Electric CorporationEW-50AAll versions—No fix listedCNA
Mitsubishi Electric CorporationEW-50EAll versions—No fix listedCNA
Mitsubishi Electric CorporationTE-200AAll versions—No fix listedCNA
Mitsubishi Electric CorporationTE-50AAll versions—No fix listedCNA
Mitsubishi Electric CorporationTW-50AAll versions—No fix listedCNA
Mitsubishi Electric CorporationCMS-RMD-JAll versions—No fix listedCNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-3699
  2. 2026-10-03 Alias added: GHSA-73r7-73gp-j7mv

References

Advisory 1

Other 2

  • TI-2022-14737 Deserialization of untrusted data in Mitsubishi Electric Corporation GENESIS64 CVSS 3.1CRITICAL 9.8
  • TI-2022-19113 Authentication Bypass Vulnerability in Web Server Function on MELSEC Series CVSS 3.1CRITICAL 9.1
  • TI-2023-01345 Denial-of-Service and Remote Code Execution Vulnerability in MELSEC Series CPU module CVSS 3.1CRITICAL 10.0
  • TI-2023-06346 Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')… CVSS 3.1CRITICAL 9.8
  • TI-2023-03131 Denial of Service (DoS) and Remote Code Execution Vulnerability in MITSUBISHI CNC Series CVSS 3.1CRITICAL 9.8
  • TI-2021-03821 Memory corruption in Mitsubishi Electric Corporation CPU Module Logging Configuration Tool CVSS 3.1CRITICAL 9.8
See all 151 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences