CVE-2021-20598

Overly Restrictive Account Lockout Mechanism vulnerability in Mitsubishi Electric MELSEC iQ-R series CPU modules (R08/16/32/120SFCPU all versions, R08/16/32/120PSFCPU all versions) allows a remote unauthenticated attacker to lockout a legitimate user by continuously trying login with incorrect password.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
MitsubishiCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 55%
VendorProductVersion
mitsubishielectricr08sfcpu_firmware
*
mitsubishielectricr16sfcpu_firmware
*
mitsubishielectricr32sfcpu_firmware
*
mitsubishielectricr120sfcpu_firmware
*
mitsubishielectricr08psfcpu_firmware
*
mitsubishielectricr16psfcpu_firmware
*
mitsubishielectricr32psfcpu_firmware
*
mitsubishielectricr120psfcpu_firmware
*
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://jvn.jp/vu/JVNVU98578731/index.html
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-010_en.pdf
https://jvn.jp/vu/JVNVU98578731/index.html
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-010_en.pdf