Auth bypass in Mitsubishielectric R08psfcpu
CVE-2021-20599
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 R08/1…
EPSS: 0.013 (66.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Mitsubishielectric R08psfcpu
- Mitsubishielectric R08psfcpu_firmware
- Mitsubishielectric R08sfcpu
- Mitsubishielectric R08sfcpu_firmware
- Mitsubishielectric R120psfcpu
- Mitsubishielectric R120psfcpu_firmware
- Mitsubishielectric R120sfcpu
- Mitsubishielectric R120sfcpu_firmware
- Mitsubishielectric R16psfcpu
- Mitsubishielectric R16psfcpu_firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp (vendor-advisory, Vendor Advisory)
- Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp (Third Party Advisory, government-resource)
- Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp (government-resource)
Frequently asked questions
- What is CVE-2021-20599?
- CVE-2021-20599 is a critical-severity vulnerability in Mitsubishielectric R08psfcpu, classified under Cleartext Transmission of Sensitive Information. CVSS score: 9.1/10. Published 2021-10-14.
- How severe is CVE-2021-20599?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2021-20599 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.