Vulnerability Database

383,371

Total vulnerabilities in the database

CVE-2020-14521 — mitsubishielectric / fr_configurator_sw3

Incorrect Default Permissions

Multiple Mitsubishi Electric Factory Automation engineering software products have a malicious code execution vulnerability. A malicious attacker could use this vulnerability to obtain information, modify information, and cause a denial-of-service condition.

  • Published: Feb 11, 2022
  • Updated: Sep 13, 2026
  • CVE: CVE-2020-14521
  • Severity: High
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: High
  • Score: 8.3
  • AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/Au:N/C:P/I:P/A:P
Software Affected versions
mitsubishielectric / fr_configurator_sw3 All versions
mitsubishielectric / fr_configurator2 All versions
mitsubishielectric / m_commdtm-io-link All versions
mitsubishielectric / melsec_wincpu_setting_utility All versions
mitsubishielectric / melsoft_em_software_development_kit All versions
mitsubishielectric / mi_configurator All versions
mitsubishielectric / setting/monitoring_tools_for_the_c_controller_module All versions
mitsubishielectric / c_controller_module_setting_and_monitoring_tool All versions
mitsubishielectric / c_controller_interface_module_utility All versions
mitsubishielectric / gt_designer2_classic All versions
mitsubishielectric / position_board_utility_2 All versions
mitsubishielectric / cc-link_ie_control_network_data_collector = 1.00a
mitsubishielectric / cc-link_ie_field_network_data_collector = 1.00a
mitsubishielectric / cc-link_ie_tsn_data_collector = 1.00a
mitsubishielectric / cpu_module_logging_configuration_tool <= 1.100e
mitsubishielectric / cw_configurator <= 1.010l
mitsubishielectric / data_transfer <= 3.42u
mitsubishielectric / ezsocket <= 5.1
mitsubishielectric / gt_softgot1000 >= 3.0, <= 3.200j
mitsubishielectric / gt_softgot2000 >= 1.0, <= 1.241b
mitsubishielectric / gx_developer <= 8.504a
mitsubishielectric / gx_logviewer <= 1.100e
mitsubishielectric / gx_works2 <= 1.601b
mitsubishielectric / gx_works3 <= 1.063r
mitsubishielectric / melfa-works <= 4.4
mitsubishielectric / melsoft_complete_clean_up_tool <= 1.06g
mitsubishielectric / melsoft_iq_appportal <= 1.17t
mitsubishielectric / melsoft_navigator <= 2.74c
mitsubishielectric / motion_control_setting <= 1.005f
mitsubishielectric / motorizer <= 1.005f
mitsubishielectric / mr_configurator2 <= 1.125f
mitsubishielectric / mt_works2 <= 1.167z
mitsubishielectric / mtconnect_data_collector <= 1.1.4.0
mitsubishielectric / mx_component <= 4.20w
mitsubishielectric / mx_mesinterface <= 1.21x
mitsubishielectric / mx_mesinterface-r <= 1.12n
mitsubishielectric / mx_sheet <= 2.15r
mitsubishielectric / px_developer <= 1.53f
mitsubishielectric / rt_toolbox2 <= 3.73b
mitsubishielectric / rt_toolbox3 <= 1.82l
mitsubishielectric / slmp_data_collector <= 1.04e
mitsubishielectric / gt_designer3 <= 1.241b

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.