Published: 06/08/2021 Updated: 14/10/2022

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions "26" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU all versions allows a remote unauthenticated malicious user to acquire legitimate user names registered in the module via brute-force attack on user names.

Vulnerable Product	Search on Vulmon	Subscribe to Product
mitsubishielectric r08sfcpu_firmware
mitsubishielectric r16sfcpu_firmware
mitsubishielectric r32sfcpu_firmware
mitsubishielectric r120sfcpu_firmware
mitsubishielectric r08psfcpu_firmware
mitsubishielectric r16psfcpu_firmware
mitsubishielectric r32psfcpu_firmware
mitsubishielectric r120psfcpu_firmware

Critical Infrastructure Sectors: Critical Manufacturing

CWE-200 https://jvn.jp/vu/JVNVU98578731/index.html https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-008_en.pdf https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01 https://nvd.nist.gov https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01

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CVE-2021-20594

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