CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2021-20594
High (7.5) in mitsubishielectric. EPSS 2.4% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 2.4% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-11-01)
- CWE
- CWE-200
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mitsubishielectric:r08psfcpu_firmware
- mitsubishielectric:r08sfcpu_firmware
- mitsubishielectric:r120psfcpu_firmware
- mitsubishielectric:r120sfcpu_firmware
- mitsubishielectric:r16psfcpu_firmware
- mitsubishielectric:r16sfcpu_firmware
- mitsubishielectric:r32psfcpu_firmware
- mitsubishielectric:r32sfcpu_firmware