CVE-2020-13238

Mitsubishi MELSEC iQ-R Series PLCs with firmware 33 allow attackers to halt the industrial process by sending an unauthenticated crafted packet over the network, because this denial of service attack consumes excessive CPU time. After halting, physical access to the PLC is required in order to restore production.
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
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 40%
VendorProductVersion
mitsubishielectricmelsec_iq-r00cpu_firmware
𝑥
≤ 7
mitsubishielectricmelsec_iq-r01cpu_firmware
𝑥
≤ 7
mitsubishielectricmelsec_iq-r02cpu_firmware
𝑥
≤ 7
mitsubishielectricmelsec_iq-r04cpu_firmware
𝑥
≤ 39
mitsubishielectricmelsec_iq-r08cpu_firmware
𝑥
≤ 39
mitsubishielectricmelsec_iq-r16cpu_firmware
𝑥
≤ 39
mitsubishielectricmelsec_iq-r32cpu_firmware
𝑥
≤ 39
mitsubishielectricmelsec_iq-r120cpu_firmware
𝑥
≤ 39
mitsubishielectricmelsec_iq-r08fcpu_firmware
𝑥
≤ 20
mitsubishielectricmelsec_iq-r16fcpu_firmware
𝑥
≤ 20
mitsubishielectricmelsec_iq-r32fcpu_firmware
𝑥
≤ 20
mitsubishielectricmelsec_iq-r120fcpu_firmware
𝑥
≤ 20
mitsubishielectricmelsec_iq-r08pcpu_firmware
*
mitsubishielectricmelsec_iq-r16pcpu_firmware
*
mitsubishielectricmelsec_iq-r32pcpu_firmware
*
mitsubishielectricmelsec_iq-r120pcpu_firmware
*
mitsubishielectricmelsec_iq-r08sfcpu_firmware
*
mitsubishielectricmelsec_iq-r16sfcpu_firmware
*
mitsubishielectricmelsec_iq-r32sfcpu_firmware
*
mitsubishielectricmelsec_iq-r120sfcpu_firmware
*
mitsubishielectricmelsec_iq-rj71en71_firmware
*
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
http://jvn.jp/vu/JVNVU97662844/index.html
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-001_en.pdf
https://www.us-cert.gov/ics/advisories/icsa-20-161-02
http://jvn.jp/vu/JVNVU97662844/index.html
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-001_en.pdf
https://www.us-cert.gov/ics/advisories/icsa-20-161-02