CVE-2021-20609 
Uncontrolled Resource Consumption vulnerability in Mitsubishi Electric MELSEC iQ-R Series R00/01/02CPU, MELSEC iQ-R Series R04/08/16/32/120(EN)CPU, MELSEC iQ-R Series R08/16/32/120SFCPU, MELSEC iQ-R Series R08/16/32/120PCPU, MELSEC iQ-R Series R08/16/32/120PSFCPU, MELSEC iQ-R Series R16/32/64MTCPU, MELSEC iQ-R Series R12CCPU-V, MELSEC Q Series Q03UDECPU, MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU, MELSEC Q Series Q03/04/06/13/26UDVCPU, MELSEC Q Series Q04/06/13/26UDPVCPU, MELSEC Q Series Q12DCCPU-V, MELSEC Q Series Q24DHCCPU-V(G), MELSEC Q Series Q24/26DHCCPU-LS, MELSEC Q Series MR-MQ100, MELSEC Q Series Q172/173DCPU-S1, MELSEC Q Series Q172/173DSCPU, MELSEC Q Series Q170MCPU, MELSEC Q Series Q170MSCPU(-S1), MELSEC L Series L02/06/26CPU(-P), MELSEC L Series L26CPU-(P)BT and MELIPC Series MI5122-VW allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery.
Problem types: cwe_id: CWE-400
description: CWE-400 Uncontrolled Resource Consumption
Affected products: vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R00CPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R01CPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R02CPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R04CPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R08CPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R16CPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R32CPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R120CPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R04ENCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R08ENCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R16ENCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R32ENCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R120ENCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R08SFCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R16SFCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R32SFCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R120SFCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R08PCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R16PCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R32PCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R120PCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R08PSFCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R16PSFCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R32PSFCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R120PSFCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R16MTCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R32MTCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R64MTCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC iQ-R Series R12CCPU-V
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q03UDECPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q04UDEHCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q06UDEHCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q10UDEHCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q13UDEHCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q20UDEHCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q26UDEHCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q50UDEHCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q100UDEHCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q03UDVCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q04UDVCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q06UDVCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q13UDVCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q26UDVCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q04UDPVCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q06UDPVCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q13UDPVCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q26UDPVCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q12DCCPU-V
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q24DHCCPU-V
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q24DHCCPU-VG
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q24DHCCPU-LS
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q26DHCCPU-LS
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series MR-MQ100
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q172DCPU-S1
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q173DCPU-S1
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q172DSCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q173DSCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q170MCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q170MSCPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC Q Series Q170MSCPU-S1
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC L Series L02CPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC L Series L06CPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC L Series L26CPU
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC L Series L02CPU-P
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC L Series L06CPU-P
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC L Series L26CPU-P
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC L Series L26CPU-BT
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELSEC L Series L26CPU-PBT
default_status: unaffected
vendor: Mitsubishi Electric Corporation
product: MELIPC Series MI5122-VW
default_status: unaffected
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
Published: 2021-12-01T15:41:20.000Z