CVE-2023-0525: Mitsubishielectric GS21 Firmware

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Weak Encoding for Password vulnerability in Mitsubishi Electric Corporation GOT2000 Series GT27 model versions 01.49.000 and prior, GT25 model versions 01.49.000 and prior, GT23 model versions 01.49.000 and prior, GT21 model versions 01.49.000 and prior, GOT SIMPLE Series GS25 model versions 01.49.000 and prior, GS21 model versions 01.49.000 and prior, GT Designer3 Version1 (GOT2000) versions 1.295H and prior and GT SoftGOT2000 versions 1.295H and prior allows a remote unauthenticated attacker to obtain plaintext passwords by sniffing packets containing encrypted passwords and decrypting the encrypted passwords, in the case of transferring data with GT Designer3 Version1(GOT2000) and GOT2000 Series or GOT SIMPLE Series with the Data Transfer Security function enabled, or in the case of transferring data by the SoftGOT-GOT link function with GT SoftGOT2000 and GOT2000 series with the Data Transfer Security function enabled.

Affected products

• Mitsubishielectric GS21 Firmware: before 01.50.000 (fixed in 01.50.000)
• Mitsubishielectric GS25 Firmware: before 01.50.000 (fixed in 01.50.000)
• Mitsubishielectric GT21 Firmware: before 01.50.000 (fixed in 01.50.000)
• Mitsubishielectric GT23 Firmware: before 01.50.000 (fixed in 01.50.000)
• Mitsubishielectric GT25 Firmware: before 01.50.000 (fixed in 01.50.000)
• Mitsubishielectric GT27 Firmware: before 01.50.000 (fixed in 01.50.000)
• Mitsubishielectric Gt DESIGNER3: before 1.300n (fixed in 1.300n)
• Mitsubishielectric Gt SOFTGOT2000: before 1.300n (fixed in 1.300n)

Published 2023-08-04. Last modified 2026-06-17.