CVE-2021-20600

Uncontrolled resource consumption in Mitsubishi Electric MELSEC iQ-R series C Controller Module R12CCPU-V Firmware Versions "16" and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending a large number of packets in a short time while the module starting up. System reset is required for recovery.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
MitsubishiCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 68%
VendorProductVersion
mitsubishielectricr12ccpu-v_firmware
𝑥
≤ 16
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://jvn.jp/vu/JVNVU94914666/index.html
https://us-cert.cisa.gov/ics/advisories/icsa-21-280-04
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-015_en.pdf
https://jvn.jp/vu/JVNVU94914666/index.html
https://us-cert.cisa.gov/ics/advisories/icsa-21-280-04
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-015_en.pdf