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Medium · 5.3 CVE-2023-4625 EUVD-2023-54478GHSA-23wc-j7fg-6xp5

Denial-of-Service(DoS) Vulnerability in Web server function on MELSEC Series CPU module

Published Nov 6, 2023 · Updated Feb 27, 2025 · Assigned by Mitsubishi

Vendor: Mitsubishi Electric Product: MELSEC iQ-F Series FX5U-32MR/DS Product: MELSEC iQ-F Series FX5U-32MR/ES Product: MELSEC iQ-F Series FX5U-32MT/DS Product: MELSEC iQ-F Series FX5U-32MT/DSS Product: MELSEC iQ-F Series FX5U-32MT/ES Product: MELSEC iQ-F Series FX5U-32MT/ESS Product: MELSEC iQ-F Series FX5U-64MR/DS Product: MELSEC iQ-F Series FX5U-64MR/ES Product: MELSEC iQ-F Series FX5U-64MT/DS Product: MELSEC iQ-F Series FX5U-64MT/DSS Product: MELSEC iQ-F Series FX5U-64MT/ES Product: MELSEC iQ-F Series FX5U-64MT/ESS Product: MELSEC iQ-F Series FX5U-80MR/DS Product: MELSEC iQ-F Series FX5U-80MR/ES Product: MELSEC iQ-F Series FX5U-80MT/DS Product: MELSEC iQ-F Series FX5U-80MT/DSS Product: MELSEC iQ-F Series FX5U-80MT/ES Product: MELSEC iQ-F Series FX5U-80MT/ESS Product: MELSEC iQ-F Series FX5UC-32MR/DS-TS Product: MELSEC iQ-F Series FX5UC-32MT/D Product: MELSEC iQ-F Series FX5UC-32MT/DS-TS Product: MELSEC iQ-F Series FX5UC-32MT/DSS Product: MELSEC iQ-F Series FX5UC-32MT/DSS-TS Product: MELSEC iQ-F Series FX5UC-64MT/D Product: MELSEC iQ-F Series FX5UC-64MT/DSS Product: MELSEC iQ-F Series FX5UC-96MT/D Product: MELSEC iQ-F Series FX5UC-96MT/DSS Product: MELSEC iQ-F Series FX5UJ-24MR/DS Product: MELSEC iQ-F Series FX5UJ-24MR/ES Product: MELSEC iQ-F Series FX5UJ-24MR/ES-A Product: MELSEC iQ-F Series FX5UJ-24MT/DS Product: MELSEC iQ-F Series FX5UJ-24MT/DSS Product: MELSEC iQ-F Series FX5UJ-24MT/ES Product: MELSEC iQ-F Series FX5UJ-24MT/ES-A Product: MELSEC iQ-F Series FX5UJ-24MT/ESS Product: MELSEC iQ-F Series FX5UJ-40MR/DS Product: MELSEC iQ-F Series FX5UJ-40MR/ES Product: MELSEC iQ-F Series FX5UJ-40MR/ES-A Product: MELSEC iQ-F Series FX5UJ-40MT/DS Product: MELSEC iQ-F Series FX5UJ-40MT/DSS Product: MELSEC iQ-F Series FX5UJ-40MT/ES Product: MELSEC iQ-F Series FX5UJ-40MT/ES-A Product: MELSEC iQ-F Series FX5UJ-40MT/ESS Product: MELSEC iQ-F Series FX5UJ-60MR/DS Product: MELSEC iQ-F Series FX5UJ-60MR/ES Product: MELSEC iQ-F Series FX5UJ-60MT/DS Product: MELSEC iQ-F Series FX5UJ-60MT/DSS Product: MELSEC iQ-F Series FX5UJ-60MT/ES Product: MELSEC iQ-F Series FX5UJ-60MT/ES-A Product: MELSEC iQ-F Series FX5UJ-60MT/ESS Category: ICS / OT

Description

Improper Restriction of Excessive Authentication Attempts vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F/iQ-R Series CPU modules Web server function allows a remote unauthenticated attacker to prevent legitimate users from logging into the Web server function for a certain period after the attacker has attempted to log in illegally by continuously attempting unauthorized login to the Web server function. The impact of this vulnerability will persist while the attacker continues to attempt unauthorized login.

Affected products

VendorProductAffectedFixed
Mitsubishi Electric MELSEC iQ-F Series FX5U-32MT/ES all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-64MT/ES all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-80MT/ES all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-32MR/ES all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-64MR/ES all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-80MR/ES all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-32MT/DS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-64MT/DS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-80MT/DS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-32MR/DS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-64MR/DS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-80MR/DS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-32MT/ESS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-64MT/ESS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-80MT/ESS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-32MT/DSS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-64MT/DSS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5U-80MT/DSS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5UC-32MT/D all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5UC-64MT/D all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5UC-96MT/D all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5UC-32MT/DSS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5UC-64MT/DSS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5UC-96MT/DSS all versions (for serial number 17X**** and later), 1.060 or later (for serial number 179**** and prior) —
Mitsubishi Electric MELSEC iQ-F Series FX5UC-32MT/DS-TS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UC-32MT/DSS-TS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UC-32MR/DS-TS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-24MT/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-40MT/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-60MT/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-24MR/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-40MR/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-60MR/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-24MT/ESS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-40MT/ESS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-60MT/ESS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-24MT/DS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-40MT/DS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-60MT/DS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-24MR/DS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-40MR/DS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-60MR/DS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-24MT/DSS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-40MT/DSS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-60MT/DSS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-24MT/ES-A all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-40MT/ES-A all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-60MT/ES-A all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-24MR/ES-A all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-40MR/ES-A all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5UJ-60MR/ES-A all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5S-30MT/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5S-40MT/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5S-60MT/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5S-80MT/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5S-30MR/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5S-40MR/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5S-60MR/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5S-80MR/ES all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5S-30MT/ESS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5S-40MT/ESS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5S-60MT/ESS all versions —
Mitsubishi Electric MELSEC iQ-F Series FX5S-80MT/ESS all versions —
Mitsubishi Electric MELSEC iQ-R Series R00CPU versions 05 or later —
Mitsubishi Electric MELSEC iQ-R Series R01CPU versions 05 or later —
Mitsubishi Electric MELSEC iQ-R Series R02CPU versions 05 or later —
Mitsubishi Electric MELSEC iQ-R Series R04CPU versions 35 or later —
Mitsubishi Electric MELSEC iQ-R Series R08CPU versions 35 or later —
Mitsubishi Electric MELSEC iQ-R Series R16CPU versions 35 or later —
Mitsubishi Electric MELSEC iQ-R Series R32CPU versions 35 or later —
Mitsubishi Electric MELSEC iQ-R Series R120CPU versions 35 or later —
Mitsubishi Electric MELSEC iQ-R Series R04ENCPU versions 35 or later —
Mitsubishi Electric MELSEC iQ-R Series R08ENCPU versions 35 or later —
Mitsubishi Electric MELSEC iQ-R Series R16ENCPU versions 35 or later —
Mitsubishi Electric MELSEC iQ-R Series R32ENCPU versions 35 or later —
Mitsubishi Electric MELSEC iQ-R Series R120ENCPU versions 35 or later —
Mitsubishi Electric MELSEC iQ-R Series R08PCPU versions 37 or later —
Mitsubishi Electric MELSEC iQ-R Series R16PCPU versions 37 or later —
Mitsubishi Electric MELSEC iQ-R Series R32PCPU versions 37 or later —
Mitsubishi Electric MELSEC iQ-R Series R120PCPU versions 37 or later —

Advisories 1

References