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High severity7.5NVD Advisory· Published Feb 19, 2021· Updated Jun 17, 2026

CVE-2021-20588

CVE-2021-20588

Description

Improper Handling of Length Parameter Inconsistency vulnerability in Mitsubishi Electric FA Engineering Software (CPU Module Logging Configuration Tool versions 1.112R and prior, CW Configurator versions 1.011M and prior, Data Transfer versions 3.44W and prior, EZSocket versions 5.4 and prior, FR Configurator all versions, FR Configurator SW3 all versions, FR Configurator2 versions 1.24A and prior, GT Designer3 Version1(GOT1000) versions 1.250L and prior, GT Designer3 Version1(GOT2000) versions 1.250L and prior, GT SoftGOT1000 Version3 versions 3.245F and prior, GT SoftGOT2000 Version1 versions 1.250L and prior, GX Configurator-DP versions 7.14Q and prior, GX Configurator-QP all versions, GX Developer versions 8.506C and prior, GX Explorer all versions, GX IEC Developer all versions, GX LogViewer versions 1.115U and prior, GX RemoteService-I all versions, GX Works2 versions 1.597X and prior, GX Works3 versions 1.070Y and prior, iQ Monozukuri ANDON (Data Transfer) versions 1.003D and prior, iQ Monozukuri Process Remote Monitoring (Data Transfer) versions 1.002C and prior, M_CommDTM-HART all versions, M_CommDTM-IO-Link versions 1.03D and prior, MELFA-Works versions 4.4 and prior, MELSEC WinCPU Setting Utility all versions, MELSOFT EM Software Development Kit (EM Configurator) versions 1.015R and prior, MELSOFT Navigator versions 2.74C and prior, MH11 SettingTool Version2 versions 2.004E and prior, MI Configurator versions 1.004E and prior, MT Works2 versions 1.167Z and prior, MX Component versions 5.001B and prior, Network Interface Board CC IE Control utility versions 1.29F and prior, Network Interface Board CC IE Field Utility versions 1.16S and prior, Network Interface Board CC-Link Ver.2 Utility versions 1.23Z and prior, Network Interface Board MNETH utility versions 34L and prior, PX Developer versions 1.53F and prior, RT ToolBox2 versions 3.73B and prior, RT ToolBox3 versions 1.82L and prior, Setting/monitoring tools for the C Controller module (SW4PVC-CCPU) versions 4.12N and prior, and SLMP Data Collector versions 1.04E and prior) allows a remote unauthenticated attacker to cause a DoS condition on the software products, and possibly to execute a malicious code on the personal computer running the software products although it has not been reproduced, by spoofing MELSEC, GOT or FREQROL and returning crafted reply packets.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

44
  • Mitsubishielectric/CW Configuratorllm-create
    Range: <=1.011M
  • Mitsubishielectric/CPU Module Logging Configuration Toolllm-fuzzy2 versions
    <=1.112R+ 1 more
    • (no CPE)range: <=1.112R
    • (no CPE)range: 1.112R and prior
  • Mitsubishielectric/FA Engineering Softwarellm-fuzzy
  • Mitsubishielectric/FR Configurator2cpe-rescue5 versions
    1.011M and prior+ 4 more
    • (no CPE)range: 1.011M and prior
    • (no CPE)range: all versions
    • (no CPE)range: 1.24A and prior
    • (no CPE)range: all versions
    • (no CPE)range: 1.004E and prior
  • Mitsubishielectric/Data Transfercpe-rescue
    Range: 3.44W and prior
  • Mitsubishielectric/EZSocketcpe-rescue
    Range: 5.4 and prior
  • Mitsubishielectric/GT Designer3 Version1cpe-rescue2 versions
    1.250L and prior+ 1 more
    • (no CPE)range: 1.250L and prior
    • (no CPE)range: 1.250L and prior
  • Mitsubishi Electric Corporation/GT SoftGOT1000 Version3v5
    Range: 3.245F and prior
  • Mitsubishielectric/GT SoftGOT2000cpe-rescue
    Range: 1.250L and prior
  • Mitsubishi Electric Corporation/GX Configurator-DPv5
    Range: 7.14Q and prior
  • Mitsubishi Electric Corporation/GX Configurator-QPv5
    Range: all versions
  • Mitsubishi Electric Corporation/GX Developerv5
    Range: 8.506C and prior
  • Mitsubishi Electric Corporation/GX Explorerv5
    Range: all versions
  • Mitsubishi Electric Corporation/GX IEC Developerv5
    Range: all versions
  • Mitsubishi Electric Corporation/GX LogViewerv5
    Range: 1.115U and prior
  • Mitsubishi Electric Corporation/GX RemoteService-Iv5
    Range: all versions
  • Mitsubishielectric/GX Works2cpe-rescue2 versions
    1.597X and prior+ 1 more
    • (no CPE)range: 1.597X and prior
    • (no CPE)range: 1.070Y and prior
  • Mitsubishi Electric Corporation/iQ Monozukuri ANDON (Data Transfer)v5
    Range: 1.003D and prior
  • Mitsubishi Electric Corporation/iQ Monozukuri Process Remote Monitoring (Data Transfer)v5
    Range: 1.002C and prior
  • Mitsubishi Electric Corporation/M_CommDTM-HARTv5
    Range: all versions
  • Mitsubishi Electric Corporation/M_CommDTM-IO-Linkv5
    Range: 1.03D and prior
  • Mitsubishi Electric Corporation/MELFA-Worksv5
    Range: 4.4 and prior
  • Mitsubishi Electric Corporation/MELSEC WinCPU Setting Utilityv5
    Range: all versions
  • Mitsubishielectric/EM Software Development Kit (EM Configurator)cpe-rescue
    Range: 1.015R and prior
  • Mitsubishielectric/MELSOFT Navigatorcpe-rescue
    Range: 2.74C and prior
  • Mitsubishi Electric Corporation/MH11 SettingTool Version2v5
    Range: 2.004E and prior
  • Mitsubishielectric/MT Works2cpe-rescue
    Range: 1.167Z and prior
  • Mitsubishielectric/MX Component 3cpe-rescue
    Range: 5.001B and prior
  • Mitsubishi Electric Corporation/Network Interface Board CC IE Control utilityv5
    Range: 1.29F and prior
  • Mitsubishi Electric Corporation/Network Interface Board CC IE Field Utilityv5
    Range: 1.16S and prior
  • Mitsubishi Electric Corporation/Network Interface Board CC-Link Ver.2 Utilityv5
    Range: 1.23Z and prior
  • Mitsubishi Electric Corporation/Network Interface Board MNETH utilityv5
    Range: 34L and prior
  • Mitsubishi Electric Corporation/PX Developerv5
    Range: 1.53F and prior
  • Mitsubishi Electric Corporation/RT ToolBox2v5
    Range: 3.73B and prior
  • Mitsubishi Electric Corporation/RT ToolBox3v5
    Range: 1.82L and prior
  • Mitsubishi Electric Corporation/Setting/monitoring tools for the C Controller module (SW4PVC-CCPU)v5
    Range: 4.12N and prior
  • Mitsubishi Electric Corporation/SLMP Data Collectorv5
    Range: 1.04E and prior

Patches

Vulnerability mechanics

References

5

News mentions

0

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