CVE-2020-5666

Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series CPU Modules (R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions from '35' to '51') allows a remote attacker to cause an error in a CPU unit via a specially crafted HTTP packet, which may lead to a denial-of-service (DoS) condition in execution of the program and its communication.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
jpcertCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 94%
VendorProductVersion
mitsubishielectricmelsec_iq-r00_firmware
05 ≤
𝑥
≤ 19
mitsubishielectricmelsec_iq-r01_firmware
05 ≤
𝑥
≤ 19
mitsubishielectricmelsec_iq-r02_firmware
05 ≤
𝑥
≤ 19
mitsubishielectricmelsec_iq-r04_firmware
35 ≤
𝑥
≤ 51
mitsubishielectricmelsec_iq-r16_firmware
35 ≤
𝑥
≤ 51
mitsubishielectricmelsec_iq-r08_firmware
35 ≤
𝑥
≤ 51
mitsubishielectricmelsec_iq-r32_firmware
35 ≤
𝑥
≤ 51
mitsubishielectricmelsec_iq-r120_firmware
35 ≤
𝑥
≤ 51
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://jvn.jp/en/jp/JVN44764844/index.html
https://jvn.jp/jp/JVN44764844/index.html
https://us-cert.cisa.gov/ics/advisories/icsa-20-317-01
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-015_en.pdf
https://jvn.jp/en/jp/JVN44764844/index.html
https://jvn.jp/jp/JVN44764844/index.html
https://us-cert.cisa.gov/ics/advisories/icsa-20-317-01
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-015_en.pdf