7.5
HIGH
CVE-2021-20611
Mitsubishi Electric MELSEC Denial-of-Service Remote Unauthenticated Vulnerability
Description

Improper Input Validation 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.

INFO

Published Date :

Dec. 1, 2021, 4:15 p.m.

Last Modified :

Nov. 9, 2023, 9:15 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-20611 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mitsubishi melsec_iq-r_r00_cpu_firmware
2 Mitsubishi melsec_iq-r_r01_cpu_firmware
3 Mitsubishi melsec_iq-r_r02_cpu_firmware
4 Mitsubishi melsec_iq-r_r04_cpu_firmware
5 Mitsubishi melsec_iq-r_r08_cpu_firmware
6 Mitsubishi melsec_iq-r_r120_cpu_firmware
7 Mitsubishi melsec_iq-r_r16_cpu_firmware
8 Mitsubishi melsec_iq-r_r32_cpu_firmware
9 Mitsubishi melsec_iq-r_r04_pcpu_firmware
10 Mitsubishi melsec_iq-r_r08_pcpu_firmware
11 Mitsubishi melsec_iq-r_r16_pcpu_firmware
12 Mitsubishi melsec_iq-r_r32_pcpu_firmware
13 Mitsubishi melsec_iq-r_r120_pcpu_firmware
14 Mitsubishi melsec_iq-r_r08_sfcpu_firmware
15 Mitsubishi melsec_iq-r_r16_sfcpu_firmware
16 Mitsubishi melsec_iq-r_r32_sfcpu_firmware
17 Mitsubishi melsec_iq-r_r120_sfcpu_firmware
18 Mitsubishi melsec_iq-r_r16_mtcpu_firmware
19 Mitsubishi melsec_iq-r_r32_mtcpu_firmware
20 Mitsubishi melsec_iq-r_r64_mtcpu_firmware
21 Mitsubishi melsec_iq-r_r12_ccpu-v_firmware
22 Mitsubishi melsec_q03udecpu_firmware
23 Mitsubishi melsec_q04udecpu_firmware
24 Mitsubishi melsec_q06udecpu_firmware
25 Mitsubishi melsec_q10udecpu_firmware
26 Mitsubishi melsec_q13udecpu_firmware
27 Mitsubishi melsec_q20udecpu_firmware
28 Mitsubishi melsec_q26udecpu_firmware
29 Mitsubishi melsec_q50udecpu_firmware
30 Mitsubishi melsec_q100udecpu_firmware
31 Mitsubishi melsec_q03udvcpu_firmware
32 Mitsubishi melsec_q04udvcpu_firmware
33 Mitsubishi melsec_q06udvcpu_firmware
34 Mitsubishi melsec_q13udvcpu_firmware
35 Mitsubishi melsec_q26udvcpu_firmware
36 Mitsubishi melsec_q04udpvcpu_firmware
37 Mitsubishi melsec_q06udpvcpu_firmware
38 Mitsubishi melsec_q13udpvcpu_firmware
39 Mitsubishi melsec_q26udpvcpu_firmware
40 Mitsubishi melsec_q12dccpu-v_firmware
41 Mitsubishi melsec_q24dhccpu-v\(g\)_firmware
42 Mitsubishi melsec_q24dhccpu-ls_firmware
43 Mitsubishi melsec_q26dhccpu-ls_firmware
44 Mitsubishi melsec_mr-mq100_firmware
45 Mitsubishi melsec_q172dcpu-s1_firmware
46 Mitsubishi melsec_q173dcpu-s1_firmware
47 Mitsubishi melsec_q172dscpu_firmware
48 Mitsubishi melsec_q173dscpu_firmware
49 Mitsubishi melsec_q170mscpu\(-s1\)_firmware
50 Mitsubishi melsec_q170mcpu_firmware
51 Mitsubishi melipc_mi5122-vw_firmware
52 Mitsubishi melsec_l26cpu-\(p\)bt_firmware
53 Mitsubishi melsec_l26cpu\(-p\)_firmware
54 Mitsubishi melsec_l06cpu\(-p\)_firmware
55 Mitsubishi melsec_l02cpu\(-p\)_firmware
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-20611.

URL Resource
https://jvn.jp/vu/JVNVU94434051/index.html Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-334-02 Third Party Advisory US Government Resource
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-019_en.pdf Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-20611 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-20611 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 09, 2023

    Action Type Old Value New Value
    Changed Description Improper Input Validation vulnerability in Mitsubishi Electric MELSEC iQ-R Series R00/01/02CPU Firmware versions "24" and prior, Mitsubishi Electric MELSEC iQ-R Series R04/08/16/32/120(EN)CPU Firmware versions "57" and prior, Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120SFCPU Firmware versions "28" and prior, Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120PCPU Firmware versions "29" and prior, Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120PSFCPU Firmware versions "08" and prior, Mitsubishi Electric MELSEC iQ-R Series R16/32/64MTCPU Operating system software version "23" and prior, Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V Firmware versions "16" and prior, Mitsubishi Electric MELSEC Q Series Q03UDECPU The first 5 digits of serial No. "23121" and prior, Mitsubishi Electric MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU The first 5 digits of serial No. "23121" and prior, Mitsubishi Electric MELSEC Q Series Q03/04/06/13/26UDVCPU The first 5 digits of serial No. "23071" and prior, Mitsubishi Electric MELSEC Q Series Q04/06/13/26UDPVCPU The first 5 digits of serial No. "23071" and prior, Mitsubishi Electric MELSEC Q Series Q12DCCPU-V The first 5 digits of serial No. "24031" and prior, Mitsubishi Electric MELSEC Q Series Q24DHCCPU-V(G) The first 5 digits of serial No. "24031" and prior, Mitsubishi Electric MELSEC Q Series Q24/26DHCCPU-LS The first 5 digits of serial No. "24031" and prior, Mitsubishi Electric MELSEC Q Series MR-MQ100 Operating system software version "F" and prior, Mitsubishi Electric MELSEC Q Series Q172/173DCPU-S1 Operating system software version "W" and prior, Mitsubishi Electric MELSEC Q Series Q172/173DSCPU All versions, Mitsubishi Electric MELSEC Q Series Q170MCPU Operating system software version "W" and prior, Mitsubishi Electric MELSEC Q Series Q170MSCPU(-S1) All versions, Mitsubishi Electric MELSEC L Series L02/06/26CPU(-P) The first 5 digits of serial No. "23121" and prior, Mitsubishi Electric MELSEC L Series L26CPU-(P)BT The first 5 digits of serial No. "23121" and prior and Mitsubishi Electric MELIPC Series MI5122-VW Firmware versions "05" and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery. Improper Input Validation 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.
  • CVE Modified by [email protected]

    Nov. 25, 2022

    Action Type Old Value New Value
    Changed Description Improper Input Validation vulnerability in Mitsubishi Electric MELSEC iQ-R Series R00/01/02CPU Firmware versions "24" and prior, Mitsubishi Electric MELSEC iQ-R Series R04/08/16/32/120(EN)CPU Firmware versions "57" and prior, Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120SFCPU All versions, Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120PCPU Firmware versions "29" and prior, Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120PSFCPU Firmware versions "08" and prior, Mitsubishi Electric MELSEC iQ-R Series R16/32/64MTCPU Operating system software version "23" and prior, Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V Firmware versions "16" and prior, Mitsubishi Electric MELSEC Q Series Q03UDECPU The first 5 digits of serial No. "23121" and prior, Mitsubishi Electric MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU The first 5 digits of serial No. "23121" and prior, Mitsubishi Electric MELSEC Q Series Q03/04/06/13/26UDVCPU The first 5 digits of serial No. "23071" and prior, Mitsubishi Electric MELSEC Q Series Q04/06/13/26UDPVCPU The first 5 digits of serial No. "23071" and prior, Mitsubishi Electric MELSEC Q Series Q12DCCPU-V The first 5 digits of serial No. "24031" and prior, Mitsubishi Electric MELSEC Q Series Q24DHCCPU-V(G) The first 5 digits of serial No. "24031" and prior, Mitsubishi Electric MELSEC Q Series Q24/26DHCCPU-LS The first 5 digits of serial No. "24031" and prior, Mitsubishi Electric MELSEC Q Series MR-MQ100 Operating system software version "F" and prior, Mitsubishi Electric MELSEC Q Series Q172/173DCPU-S1 Operating system software version "W" and prior, Mitsubishi Electric MELSEC Q Series Q172/173DSCPU All versions, Mitsubishi Electric MELSEC Q Series Q170MCPU Operating system software version "W" and prior, Mitsubishi Electric MELSEC Q Series Q170MSCPU(-S1) All versions, Mitsubishi Electric MELSEC L Series L02/06/26CPU(-P) The first 5 digits of serial No. "23121" and prior, Mitsubishi Electric MELSEC L Series L26CPU-(P)BT The first 5 digits of serial No. "23121" and prior and Mitsubishi Electric MELIPC Series MI5122-VW Firmware versions "05" and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery. Improper Input Validation vulnerability in Mitsubishi Electric MELSEC iQ-R Series R00/01/02CPU Firmware versions "24" and prior, Mitsubishi Electric MELSEC iQ-R Series R04/08/16/32/120(EN)CPU Firmware versions "57" and prior, Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120SFCPU Firmware versions "28" and prior, Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120PCPU Firmware versions "29" and prior, Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120PSFCPU Firmware versions "08" and prior, Mitsubishi Electric MELSEC iQ-R Series R16/32/64MTCPU Operating system software version "23" and prior, Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V Firmware versions "16" and prior, Mitsubishi Electric MELSEC Q Series Q03UDECPU The first 5 digits of serial No. "23121" and prior, Mitsubishi Electric MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU The first 5 digits of serial No. "23121" and prior, Mitsubishi Electric MELSEC Q Series Q03/04/06/13/26UDVCPU The first 5 digits of serial No. "23071" and prior, Mitsubishi Electric MELSEC Q Series Q04/06/13/26UDPVCPU The first 5 digits of serial No. "23071" and prior, Mitsubishi Electric MELSEC Q Series Q12DCCPU-V The first 5 digits of serial No. "24031" and prior, Mitsubishi Electric MELSEC Q Series Q24DHCCPU-V(G) The first 5 digits of serial No. "24031" and prior, Mitsubishi Electric MELSEC Q Series Q24/26DHCCPU-LS The first 5 digits of serial No. "24031" and prior, Mitsubishi Electric MELSEC Q Series MR-MQ100 Operating system software version "F" and prior, Mitsubishi Electric MELSEC Q Series Q172/173DCPU-S1 Operating system software version "W" and prior, Mitsubishi Electric MELSEC Q Series Q172/173DSCPU All versions, Mitsubishi Electric MELSEC Q Series Q170MCPU Operating system software version "W" and prior, Mitsubishi Electric MELSEC Q Series Q170MSCPU(-S1) All versions, Mitsubishi Electric MELSEC L Series L02/06/26CPU(-P) The first 5 digits of serial No. "23121" and prior, Mitsubishi Electric MELSEC L Series L26CPU-(P)BT The first 5 digits of serial No. "23121" and prior and Mitsubishi Electric MELIPC Series MI5122-VW Firmware versions "05" and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery.
    Added CVSS V3.1 Mitsubishi Electric Corporation AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CWE Mitsubishi Electric Corporation CWE-20
  • CVE Modified by [email protected]

    Jul. 26, 2022

    Action Type Old Value New Value
    Changed Description Improper Input Validation vulnerability in MELSEC iQ-R Series R00/01/02CPU Firmware versions "24" and prior, MELSEC iQ-R Series R04/08/16/32/120(EN)CPU Firmware versions "57" and prior, MELSEC iQ-R Series R08/16/32/120SFCPU All versions, MELSEC iQ-R Series R08/16/32/120PCPU Firmware versions "29" and prior, MELSEC iQ-R Series R08/16/32/120PSFCPU Firmware versions "08" and prior, MELSEC iQ-R Series R16/32/64MTCPU Operating system software version "23" and prior, MELSEC iQ-R Series R12CCPU-V All versions, MELSEC Q Series Q03UDECPU The first 5 digits of serial No. "23121" and prior, MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU The first 5 digits of serial No. "23121" and prior, MELSEC Q Series Q03/04/06/13/26UDVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q04/06/13/26UDPVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q12DCCPU-V The first 5 digits of serial No. "24031" and prior, MELSEC Q Series Q24DHCCPU-V(G) The first 5 digits of serial No. "24031" and prior, MELSEC Q Series Q24/26DHCCPU-LS The first 5 digits of serial No. "24031" and prior, MELSEC Q Series MR-MQ100 Operating system software version "F" and prior, MELSEC Q Series Q172/173DCPU-S1 Operating system software version "W" and prior, MELSEC Q Series Q172/173DSCPU All versions, MELSEC Q Series Q170MCPU Operating system software version "W" and prior, MELSEC Q Series Q170MSCPU(-S1) All versions, MELSEC L Series L02/06/26CPU(-P) The first 5 digits of serial No. "23121" and prior, MELSEC L Series L26CPU-(P)BT The first 5 digits of serial No. "23121" and prior and MELIPC Series MI5122-VW All versions allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery. Improper Input Validation vulnerability in Mitsubishi Electric MELSEC iQ-R Series R00/01/02CPU Firmware versions "24" and prior, Mitsubishi Electric MELSEC iQ-R Series R04/08/16/32/120(EN)CPU Firmware versions "57" and prior, Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120SFCPU All versions, Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120PCPU Firmware versions "29" and prior, Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120PSFCPU Firmware versions "08" and prior, Mitsubishi Electric MELSEC iQ-R Series R16/32/64MTCPU Operating system software version "23" and prior, Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V Firmware versions "16" and prior, Mitsubishi Electric MELSEC Q Series Q03UDECPU The first 5 digits of serial No. "23121" and prior, Mitsubishi Electric MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU The first 5 digits of serial No. "23121" and prior, Mitsubishi Electric MELSEC Q Series Q03/04/06/13/26UDVCPU The first 5 digits of serial No. "23071" and prior, Mitsubishi Electric MELSEC Q Series Q04/06/13/26UDPVCPU The first 5 digits of serial No. "23071" and prior, Mitsubishi Electric MELSEC Q Series Q12DCCPU-V The first 5 digits of serial No. "24031" and prior, Mitsubishi Electric MELSEC Q Series Q24DHCCPU-V(G) The first 5 digits of serial No. "24031" and prior, Mitsubishi Electric MELSEC Q Series Q24/26DHCCPU-LS The first 5 digits of serial No. "24031" and prior, Mitsubishi Electric MELSEC Q Series MR-MQ100 Operating system software version "F" and prior, Mitsubishi Electric MELSEC Q Series Q172/173DCPU-S1 Operating system software version "W" and prior, Mitsubishi Electric MELSEC Q Series Q172/173DSCPU All versions, Mitsubishi Electric MELSEC Q Series Q170MCPU Operating system software version "W" and prior, Mitsubishi Electric MELSEC Q Series Q170MSCPU(-S1) All versions, Mitsubishi Electric MELSEC L Series L02/06/26CPU(-P) The first 5 digits of serial No. "23121" and prior, Mitsubishi Electric MELSEC L Series L26CPU-(P)BT The first 5 digits of serial No. "23121" and prior and Mitsubishi Electric MELIPC Series MI5122-VW Firmware versions "05" and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery.
  • CVE Modified by [email protected]

    Jun. 02, 2022

    Action Type Old Value New Value
    Changed Description Improper Input Validation vulnerability in MELSEC iQ-R Series R00/01/02CPU Firmware versions "24" and prior, MELSEC iQ-R Series R04/08/16/32/120(EN)CPU Firmware versions "57" and prior, MELSEC iQ-R Series R08/16/32/120SFCPU All versions, MELSEC iQ-R Series R08/16/32/120PCPU Firmware versions "29" and prior, MELSEC iQ-R Series R08/16/32/120PSFCPU All versions, MELSEC iQ-R Series R16/32/64MTCPU All versions, MELSEC iQ-R Series R12CCPU-V All versions, MELSEC Q Series Q03UDECPU The first 5 digits of serial No. "23121" and prior, MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU The first 5 digits of serial No. "23121" and prior, MELSEC Q Series Q03/04/06/13/26UDVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q04/06/13/26UDPVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q12DCCPU-V The first 5 digits of serial No. "24031" and prior, MELSEC Q Series Q24DHCCPU-V(G) The first 5 digits of serial No. "24031" and prior, MELSEC Q Series Q24/26DHCCPU-LS The first 5 digits of serial No. "24031" and prior, MELSEC Q Series MR-MQ100 Operating system software version "F" and prior, MELSEC Q Series Q172/173DCPU-S1 Operating system software version "W" and prior, MELSEC Q Series Q172/173DSCPU All versions, MELSEC Q Series Q170MCPU Operating system software version "W" and prior, MELSEC Q Series Q170MSCPU(-S1) All versions, MELSEC L Series L02/06/26CPU(-P) The first 5 digits of serial No. "23121" and prior, MELSEC L Series L26CPU-(P)BT The first 5 digits of serial No. "23121" and prior and MELIPC Series MI5122-VW All versions allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery. Improper Input Validation vulnerability in MELSEC iQ-R Series R00/01/02CPU Firmware versions "24" and prior, MELSEC iQ-R Series R04/08/16/32/120(EN)CPU Firmware versions "57" and prior, MELSEC iQ-R Series R08/16/32/120SFCPU All versions, MELSEC iQ-R Series R08/16/32/120PCPU Firmware versions "29" and prior, MELSEC iQ-R Series R08/16/32/120PSFCPU Firmware versions "08" and prior, MELSEC iQ-R Series R16/32/64MTCPU Operating system software version "23" and prior, MELSEC iQ-R Series R12CCPU-V All versions, MELSEC Q Series Q03UDECPU The first 5 digits of serial No. "23121" and prior, MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU The first 5 digits of serial No. "23121" and prior, MELSEC Q Series Q03/04/06/13/26UDVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q04/06/13/26UDPVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q12DCCPU-V The first 5 digits of serial No. "24031" and prior, MELSEC Q Series Q24DHCCPU-V(G) The first 5 digits of serial No. "24031" and prior, MELSEC Q Series Q24/26DHCCPU-LS The first 5 digits of serial No. "24031" and prior, MELSEC Q Series MR-MQ100 Operating system software version "F" and prior, MELSEC Q Series Q172/173DCPU-S1 Operating system software version "W" and prior, MELSEC Q Series Q172/173DSCPU All versions, MELSEC Q Series Q170MCPU Operating system software version "W" and prior, MELSEC Q Series Q170MSCPU(-S1) All versions, MELSEC L Series L02/06/26CPU(-P) The first 5 digits of serial No. "23121" and prior, MELSEC L Series L26CPU-(P)BT The first 5 digits of serial No. "23121" and prior and MELIPC Series MI5122-VW All versions allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery.
  • CVE Modified by [email protected]

    Apr. 26, 2022

    Action Type Old Value New Value
    Changed Description Improper Input Validation vulnerability in MELSEC iQ-R Series R00/01/02CPU Firmware versions "24" and prior, MELSEC iQ-R Series R04/08/16/32/120(EN)CPU Firmware versions "57" and prior, MELSEC iQ-R Series R08/16/32/120SFCPU All versions, MELSEC iQ-R Series R08/16/32/120PCPU Firmware versions "29" and prior, MELSEC iQ-R Series R08/16/32/120PSFCPU All versions, MELSEC iQ-R Series R16/32/64MTCPU All versions, MELSEC iQ-R Series R12CCPU-V All versions, MELSEC Q Series Q03UDECPU The first 5 digits of serial No. "23121" and prior, MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU The first 5 digits of serial No. "23121" and prior, MELSEC Q Series Q03/04/06/13/26UDVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q04/06/13/26UDPVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q12DCCPU-V All versions, MELSEC Q Series Q24DHCCPU-V(G) All versions, MELSEC Q Series Q24/26DHCCPU-LS All versions, MELSEC Q Series MR-MQ100 All versions, MELSEC Q Series Q172/173DCPU-S1 All versions, MELSEC Q Series Q172/173DSCPU All versions, MELSEC Q Series Q170MCPU All versions, MELSEC Q Series Q170MSCPU(-S1) All versions, MELSEC L Series L02/06/26CPU(-P) The first 5 digits of serial No. "23121" and prior, MELSEC L Series L26CPU-(P)BT The first 5 digits of serial No. "23121" and prior and MELIPC Series MI5122-VW All versions allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery. Improper Input Validation vulnerability in MELSEC iQ-R Series R00/01/02CPU Firmware versions "24" and prior, MELSEC iQ-R Series R04/08/16/32/120(EN)CPU Firmware versions "57" and prior, MELSEC iQ-R Series R08/16/32/120SFCPU All versions, MELSEC iQ-R Series R08/16/32/120PCPU Firmware versions "29" and prior, MELSEC iQ-R Series R08/16/32/120PSFCPU All versions, MELSEC iQ-R Series R16/32/64MTCPU All versions, MELSEC iQ-R Series R12CCPU-V All versions, MELSEC Q Series Q03UDECPU The first 5 digits of serial No. "23121" and prior, MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU The first 5 digits of serial No. "23121" and prior, MELSEC Q Series Q03/04/06/13/26UDVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q04/06/13/26UDPVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q12DCCPU-V The first 5 digits of serial No. "24031" and prior, MELSEC Q Series Q24DHCCPU-V(G) The first 5 digits of serial No. "24031" and prior, MELSEC Q Series Q24/26DHCCPU-LS The first 5 digits of serial No. "24031" and prior, MELSEC Q Series MR-MQ100 Operating system software version "F" and prior, MELSEC Q Series Q172/173DCPU-S1 Operating system software version "W" and prior, MELSEC Q Series Q172/173DSCPU All versions, MELSEC Q Series Q170MCPU Operating system software version "W" and prior, MELSEC Q Series Q170MSCPU(-S1) All versions, MELSEC L Series L02/06/26CPU(-P) The first 5 digits of serial No. "23121" and prior, MELSEC L Series L26CPU-(P)BT The first 5 digits of serial No. "23121" and prior and MELIPC Series MI5122-VW All versions allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery.
  • CVE Modified by [email protected]

    Jan. 28, 2022

    Action Type Old Value New Value
    Changed Description Improper Input Validation vulnerability in MELSEC iQ-R Series R00/01/02CPU Firmware versions "24" and prior, MELSEC iQ-R Series R04/08/16/32/120(EN)CPU Firmware versions "57" and prior, MELSEC iQ-R Series R08/16/32/120SFCPU All versions, MELSEC iQ-R Series R08/16/32/120PCPU Firmware versions "29" and prior, MELSEC iQ-R Series R08/16/32/120PSFCPU All versions, MELSEC iQ-R Series R16/32/64MTCPU All versions, MELSEC iQ-R Series R12CCPU-V All versions, MELSEC Q Series Q03UDECPU All versions, MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU All versions, MELSEC Q Series Q03/04/06/13/26UDVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q04/06/13/26UDPVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q12DCCPU-V All versions, MELSEC Q Series Q24DHCCPU-V(G) All versions, MELSEC Q Series Q24/26DHCCPU-LS All versions, MELSEC Q Series MR-MQ100 All versions, MELSEC Q Series Q172/173DCPU-S1 All versions, MELSEC Q Series Q172/172DSCPU All versions, MELSEC Q Series Q170MCPU All versions, MELSEC Q Series Q170MSCPU(-S1) All versions, MELSEC L Series L02/06/26CPU(-P) All versions, MELSEC L Series L26CPU-(P)BT All versions and MELIPC Series MI5122-VW All versions allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery. Improper Input Validation vulnerability in MELSEC iQ-R Series R00/01/02CPU Firmware versions "24" and prior, MELSEC iQ-R Series R04/08/16/32/120(EN)CPU Firmware versions "57" and prior, MELSEC iQ-R Series R08/16/32/120SFCPU All versions, MELSEC iQ-R Series R08/16/32/120PCPU Firmware versions "29" and prior, MELSEC iQ-R Series R08/16/32/120PSFCPU All versions, MELSEC iQ-R Series R16/32/64MTCPU All versions, MELSEC iQ-R Series R12CCPU-V All versions, MELSEC Q Series Q03UDECPU The first 5 digits of serial No. "23121" and prior, MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU The first 5 digits of serial No. "23121" and prior, MELSEC Q Series Q03/04/06/13/26UDVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q04/06/13/26UDPVCPU The first 5 digits of serial No. "23071" and prior, MELSEC Q Series Q12DCCPU-V All versions, MELSEC Q Series Q24DHCCPU-V(G) All versions, MELSEC Q Series Q24/26DHCCPU-LS All versions, MELSEC Q Series MR-MQ100 All versions, MELSEC Q Series Q172/173DCPU-S1 All versions, MELSEC Q Series Q172/173DSCPU All versions, MELSEC Q Series Q170MCPU All versions, MELSEC Q Series Q170MSCPU(-S1) All versions, MELSEC L Series L02/06/26CPU(-P) The first 5 digits of serial No. "23121" and prior, MELSEC L Series L26CPU-(P)BT The first 5 digits of serial No. "23121" and prior and MELIPC Series MI5122-VW All versions allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset is required for recovery.
  • Initial Analysis by [email protected]

    Dec. 03, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://jvn.jp/vu/JVNVU94434051/index.html No Types Assigned https://jvn.jp/vu/JVNVU94434051/index.html Third Party Advisory
    Changed Reference Type https://us-cert.cisa.gov/ics/advisories/icsa-21-334-02 No Types Assigned https://us-cert.cisa.gov/ics/advisories/icsa-21-334-02 Third Party Advisory, US Government Resource
    Changed Reference Type https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-019_en.pdf No Types Assigned https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-019_en.pdf Vendor Advisory
    Added CWE NIST CWE-20
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r00_cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 24 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r00_cpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r01_cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 24 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r01_cpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r02_cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 24 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r02_cpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r04_cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 57 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r04_cpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r08_cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 57 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r08_cpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r120_cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 57 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r120_cpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r16_cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 57 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r16_cpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r32_cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 57 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r32_cpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r04_pcpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 29 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r04_pcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r08_pcpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 29 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r08_pcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r16_pcpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 29 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r16_pcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r32_pcpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 29 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r32_pcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r120_pcpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 29 OR cpe:2.3:h:mitsubishi:melsec_iq-r_r120_pcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r08_sfcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_iq-r_r08_sfcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r16_sfcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_iq-r_r16_sfcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r32_sfcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_iq-r_r32_sfcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r120_sfcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_iq-r_r120_sfcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r16_mtcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_iq-r_r16_mtcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r32_mtcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_iq-r_r32_mtcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r64_mtcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_iq-r_r64_mtcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r12_ccpu-v_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_iq-r_r12_ccpu-v:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q03udecpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q03udecpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q04udecpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q04udecpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q06udecpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q06udecpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q10udecpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q10udecpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q13udecpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q13udecpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q20udecpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q20udecpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q26udecpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q26udecpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q50udecpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q50udecpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q100udecpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q100udecpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q03udvcpu_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q03udvcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q04udvcpu_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q04udvcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q06udvcpu_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q06udvcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q13udvcpu_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q13udvcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q26udvcpu_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q26udvcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q04udpvcpu_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q04udpvcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q06udpvcpu_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q06udpvcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q13udpvcpu_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q13udpvcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q26udpvcpu_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q26udpvcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q12dccpu-v_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q12dccpu-v:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q24dhccpu-v\(g\)_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q24dhccpu-v\(g\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q24dhccpu-ls_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q24dhccpu-ls:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q26dhccpu-ls_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q26dhccpu-ls:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_mr-mq100_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_mr-mq100:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q172dcpu-s1_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q172dcpu-s1:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q173dcpu-s1_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q173dcpu-s1:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q172dscpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q172dscpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q173dscpu_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q173dscpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q170mscpu\(-s1\)_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q170mscpu\(-s1\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_q170mcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_q170mcpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melipc_mi5122-vw_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melipc_mi5122-vw:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_l26cpu-\(p\)bt_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_l26cpu-\(p\)bt:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_l26cpu\(-p\)_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_l26cpu\(-p\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_l06cpu\(-p\)_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_l06cpu\(-p\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_l02cpu\(-p\)_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_l02cpu\(-p\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r08_cpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_iq-r_r08_cpu:*:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r16_cpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_iq-r_r16_cpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r32_cpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_iq-r_r32_cpu:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:mitsubishi:melsec_iq-r_r120_cpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishi:melsec_iq-r_r120_cpu:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-20611 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-20611 weaknesses.

CAPEC-3: Using Leading 'Ghost' Character Sequences to Bypass Input Filters Using Leading 'Ghost' Character Sequences to Bypass Input Filters CAPEC-7: Blind SQL Injection Blind SQL Injection CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-23: File Content Injection File Content Injection CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-28: Fuzzing Fuzzing CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies Accessing/Intercepting/Modifying HTTP Cookies CAPEC-42: MIME Conversion MIME Conversion CAPEC-43: Exploiting Multiple Input Interpretation Layers Exploiting Multiple Input Interpretation Layers CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-52: Embedding NULL Bytes Embedding NULL Bytes CAPEC-53: Postfix, Null Terminate, and Backslash Postfix, Null Terminate, and Backslash CAPEC-63: Cross-Site Scripting (XSS) Cross-Site Scripting (XSS) CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-71: Using Unicode Encoding to Bypass Validation Logic Using Unicode Encoding to Bypass Validation Logic CAPEC-72: URL Encoding URL Encoding CAPEC-73: User-Controlled Filename User-Controlled Filename CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic Using UTF-8 Encoding to Bypass Validation Logic CAPEC-81: Web Server Logs Tampering Web Server Logs Tampering CAPEC-83: XPath Injection XPath Injection CAPEC-85: AJAX Footprinting AJAX Footprinting CAPEC-88: OS Command Injection OS Command Injection CAPEC-101: Server Side Include (SSI) Injection Server Side Include (SSI) Injection CAPEC-104: Cross Zone Scripting Cross Zone Scripting CAPEC-108: Command Line Execution through SQL Injection Command Line Execution through SQL Injection CAPEC-109: Object Relational Mapping Injection Object Relational Mapping Injection CAPEC-110: SQL Injection through SOAP Parameter Tampering SQL Injection through SOAP Parameter Tampering CAPEC-120: Double Encoding Double Encoding CAPEC-135: Format String Injection Format String Injection CAPEC-136: LDAP Injection LDAP Injection CAPEC-153: Input Data Manipulation Input Data Manipulation CAPEC-182: Flash Injection Flash Injection CAPEC-209: XSS Using MIME Type Mismatch XSS Using MIME Type Mismatch CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads CAPEC-250: XML Injection XML Injection CAPEC-261: Fuzzing for garnering other adjacent user/sensitive data Fuzzing for garnering other adjacent user/sensitive data CAPEC-267: Leverage Alternate Encoding Leverage Alternate Encoding CAPEC-473: Signature Spoof Signature Spoof CAPEC-588: DOM-Based XSS DOM-Based XSS CAPEC-664: Server Side Request Forgery Server Side Request Forgery
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.35 }} 0.04%

score

0.72294

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability