CVE-2021-20594

HIGH

Mitsubishi Electric MELSEC iQ-R - Info Disclosure

Title source: llm
STIX 2.1

Description

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 firmware versions "11" and prior allows a remote unauthenticated attacker to acquire legitimate user names registered in the module via brute-force attack on user names.

References (3)

Core 3

Scores

CVSS v3 7.5
EPSS 0.0086
EPSS Percentile 75.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-200
Status published
Products (8)
mitsubishielectric/r08psfcpu_firmware
mitsubishielectric/r08sfcpu_firmware
mitsubishielectric/r120psfcpu_firmware
mitsubishielectric/r120sfcpu_firmware
mitsubishielectric/r16psfcpu_firmware
mitsubishielectric/r16sfcpu_firmware
mitsubishielectric/r32psfcpu_firmware
mitsubishielectric/r32sfcpu_firmware
Published Aug 06, 2021
Tracked Since Feb 18, 2026