7.5
CVSSv3

CVE-2021-20610

Published: 01/12/2021 Updated: 09/11/2023
CVSS v2 Base Score: 7.8 | Impact Score: 6.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 694
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Summary

Improper Handling of Length Parameter Inconsistency 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 malicious user to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery.

Vulnerability Trend

Vulnerable Product Search on Vulmon Subscribe to Product

mitsubishi melsec_iq-r_r00_cpu_firmware

mitsubishi melsec_iq-r_r01_cpu_firmware

mitsubishi melsec_iq-r_r02_cpu_firmware

mitsubishi melsec_iq-r_r04_cpu_firmware

mitsubishi melsec_iq-r_r08_cpu_firmware

mitsubishi melsec_iq-r_r120_cpu_firmware

mitsubishi melsec_iq-r_r16_cpu_firmware

mitsubishi melsec_iq-r_r32_cpu_firmware

mitsubishi melsec_iq-r_r04_pcpu_firmware

mitsubishi melsec_iq-r_r08_pcpu_firmware

mitsubishi melsec_iq-r_r16_pcpu_firmware

mitsubishi melsec_iq-r_r32_pcpu_firmware

mitsubishi melsec_iq-r_r120_pcpu_firmware

mitsubishi melsec_iq-r_r08_sfcpu_firmware

mitsubishi melsec_iq-r_r16_sfcpu_firmware

mitsubishi melsec_iq-r_r32_sfcpu_firmware

mitsubishi melsec_iq-r_r120_sfcpu_firmware

mitsubishi melsec_iq-r_r16_mtcpu_firmware

mitsubishi melsec_iq-r_r32_mtcpu_firmware

mitsubishi melsec_iq-r_r64_mtcpu_firmware

mitsubishi melsec_iq-r_r12_ccpu-v_firmware

mitsubishi melsec_q03udecpu_firmware

mitsubishi melsec_q04udecpu_firmware

mitsubishi melsec_q06udecpu_firmware

mitsubishi melsec_q10udecpu_firmware

mitsubishi melsec_q13udecpu_firmware

mitsubishi melsec_q20udecpu_firmware

mitsubishi melsec_q26udecpu_firmware

mitsubishi melsec_q50udecpu_firmware

mitsubishi melsec_q100udecpu_firmware

mitsubishi melsec_q03udvcpu_firmware -

mitsubishi melsec_q04udvcpu_firmware -

mitsubishi melsec_q06udvcpu_firmware -

mitsubishi melsec_q13udvcpu_firmware -

mitsubishi melsec_q26udvcpu_firmware -

mitsubishi melsec_q04udpvcpu_firmware -

mitsubishi melsec_q06udpvcpu_firmware -

mitsubishi melsec_q13udpvcpu_firmware -

mitsubishi melsec_q26udpvcpu_firmware -

mitsubishi melsec_q12dccpu-v_firmware

mitsubishi melsec_q24dhccpu-v\\(g\\)_firmware

mitsubishi melsec_q24dhccpu-ls_firmware

mitsubishi melsec_q26dhccpu-ls_firmware -

mitsubishi melsec_mr-mq100_firmware

mitsubishi melsec_q172dcpu-s1_firmware

mitsubishi melsec_q173dcpu-s1_firmware

mitsubishi melsec_q172dscpu_firmware

mitsubishi melsec_q173dscpu_firmware -

mitsubishi melsec_q170mscpu\\(-s1\\)_firmware

mitsubishi melsec_q170mcpu_firmware

mitsubishi melipc_mi5122-vw_firmware

mitsubishi melsec_l26cpu-\\(p\\)bt_firmware

mitsubishi melsec_l26cpu\\(-p\\)_firmware

mitsubishi melsec_l06cpu\\(-p\\)_firmware

mitsubishi melsec_l02cpu\\(-p\\)_firmware