CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2021-20599
High (7.5) in mitsubishielectric. EPSS 1.4% chance of exploitation in the next 30 days.
Cleartext Transmission of Sensitive InformationCleartext transmission of sensitive information vulnerability in MELSEC iQ-R series Safety CPU R08/16/32/120SFCPU firmware versions "26" and prior and MELSEC iQ-R series SIL2 Process CPU R08/16/32/120PSFCPU firmware versions "11" and prior allows a remote unauthenticated attacker to login to a target CPU module by obtaining credentials other than password.
Severity
- EPSS
- 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-319, CWE-639
- 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